Browse Topic: Radio equipment

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IAQG-03282025-1 IAQG-03282025-1 (Current)4/2/2025
IAQG-03282025-1
IAQG-1 Standards Committee
Coaxial Cable Connector Interface - Square Outer ConducterUSCAR19-2 (Current)8/5/2021
This radio frequency (RF) connector interface specification is suited for unsealed automobile applications up to 2 GHz.Dimensional requirements are specified in this document to ensure interchangeability. This RF connector interface specification is intended for in-line, board mount, device mount, straight or angled applications. Performance requirements are specified in SAE/USCAR-2, and in SAE/USCAR-17.
USCAR
CABLE, ELECTRIC, FILTER LINE, UNSHIELDED, UNJACKETED, MULTIPLE-COMPONENT, RADIO FREQUENCY ABSORPTIVE, 150 °C, 600-VOLTAS85485/7B (Current)7/15/2021
AE-8D Wire and Cable Committee
CABLE, ELECTRIC, FILTER LINE, SMALL DIAMETER, UNSHIELDED, UNJACKETED, MULTIPLE-COMPONENT, RADIO FREQUENCY ABSORPTIVE, 150 °C, 600-VOLTAS85485/11B (Current)7/15/2021
AE-8D Wire and Cable Committee
GUIDANCE FOR DISTRIBUTED RADIO ARCHITECTURESARINC678 (Current)7/15/2021
The purpose of this document is to evaluate Communication, Navigation, and Surveillance (CNS) Distributed Radio architectures and the feasibility of distributing the RF and systems processing sections to ensure the following: Reduce cost of equipment Reduce Size, Weight, and Power (SWaP) Ease of aircraft integration Growth capability built into the design Maintain or improve system availability, reliability, and maintainability It provides a framework to determine whether it is feasible to develop ARINC Standards that support CNS distributed radio architectures.
Airlines Electronic Engineering Committee
CABLE, ELECTRIC, FILTER LINE, SMALL DIAMETER COMPONENT WIRE, TIN-COATED COPPER CONDUCTOR, RADIO FREQUENCY, ABSORPTIVE, 150 °C, 600-VOLTAS85485/9B (Current)7/15/2021
AE-8D Wire and Cable Committee
CABLE, ELECTRIC, FILTER LINE, SMALL DIAMETER WIRE, SHIELDED, JACKETED, RADIO FREQUENCY ABSORPTIVE, 150 °C, 600-VOLTAS85485/12B (Current)6/22/2021
AE-8D Wire and Cable Committee
CABLE, ELECTRIC, FILTER LINE, SHIELDED, JACKETED, RADIO FREQUENCY ABSORPTIVE, 150 °C, 600-VOLTAS85485/8B (Current)6/22/2021
AE-8D Wire and Cable Committee
CABLE, ELECTRIC, FILTER LINE, SMALL DIAMETER, COMPONENT WIRE, SILVER-COATED HIGH-STENGTH COPPER ALLOY CONDUCTOR, RADIO FREQUENCY ABSORPTIVE, 150 °C, 600-VOLTAS85485/10B (Current)6/22/2021
AE-8D Wire and Cable Committee
Connector Accessories, Electrical General Specification forAS85049F (Current)4/14/2021
This specification covers connector accessories for use with electrical connectors; see 6.8.
AE-8C1 Connectors Committee
CABLE, ELECTRIC, FILTER LINE, COMPONENT WIRE, TIN-COATED COPPER CONDUCTOR, RADIO FREQUENCY ABSORPTIVE, 150 °C, 600-VOLTAS85485/5B (Current)3/16/2021
AE-8D Wire and Cable Committee
CABLE, ELECTRIC, FILTER LINE, COMPONENT WIRE, SILVER-COATED HIGH STRENGTH COPPER ALLOY CONDUCTOR, RADIO FREQUENCY ABSORPTIVE, 150 °C, 600-VOLTAS85485/6B (Current)3/16/2021
AE-8D Wire and Cable Committee
Flight Director EquipmentAS8008A (Current)12/22/2020
This Aerospace Standard covers Flight Director Equipments which display to the pilot a computed command for the operation of an aircraft in accordance with selected Mode(s). The term “Equipment” may include controls, displays, computers, etc. and may include sensors if furnished as a part of the Flight Director.
A-4 Aircraft Instruments Committee
Connectors, Fiber Optic, Advanced, Circular or Rectangular, Plug and Receptacle, Environment Resistant, Removable Termini/Contacts, General Specification ForAS5590B (Current)11/30/2020
This specification covers the performance requirements for a plug and receptacle. The connector inserts may contain multiple termini or multiple termini and electrical contacts. The connectors use removable termini, or removable termini and electrical contacts, and are capable of operating within a temperature range of −65 to +200 °C (see 1.2.1.1). These connectors are supplied under AS9100 reliability assurance program.
AS-3 Fiber Optics and Applied Photonics Committee
Methods of Shield Termination for Two-Piece, Crimp-Style Ferrule on Shielded CablesARP7503 (Current)11/3/2020
AS21608 shield terminating, crimp-style ferrule applications on shielded cables require various piece parts in multiple combinations to ground the shield of non-environmental cables. This ARP provides the recommended methods to ensure the shield ground wire is terminated correctly and the shield is protected. Refer to AS83519 for shield grounding when eviornmental resistance is required.
AE-8C2 Terminating Devices and Tooling Committee
Tiny, Magnetically Powered Implant Stimulates Brain Without BatteryTBMG-373448/1/2020
Rice University neuroengineers have created a tiny surgical implant that can electrically stimulate the brain and nervous system without using a battery or wired power supply.
Air Data Computer – Minimum Performance StandardAS8002B (Current)4/28/2020
This SAE Aerospace Standard (AS) covers air data computer equipment (hereinafter designated the computer) which when connected to sources of aircraft electrical power, static pressure, total pressure, outside air temperature, and others specified by the manufacturer (singly or in combination) provides some or all of the following computed air data output signals (in analog and/or digital form) which may supply primary and/or standby flight instruments: Pressure Altitude Pressure Altitude, Baro-Corrected Vertical Speed Calibrated Airspeed Mach Number Maximum Allowable Airspeed Over-speed Warning Total Air Temperature
A-4 Air Data Subcommittee
Wireless System Powers Devices Inside the BodyTBMG-361693/1/2020
In the brain, implantable electrodes that deliver an electrical current are used for a technique known as deep brain stimulation, which is often used to treat Parkinson’s disease or epilepsy. These electrodes are now controlled by a pacemaker-like device implanted under the skin, which could be eliminated if wireless power is used. Wireless brain implants could also help deliver light to stimulate or inhibit neuron activity through optogenetics, which so far has not been adapted for use in humans but could be useful for treating many neurological disorders.
Understanding the Implications of 5G CellularTBMG-361523/1/2020
The hype machine is in full swing with the latest standard in mobile telephony — 5G. This is the fifth generation of wireless, mobile broadband communications. It should not be confused with 5 GHz Wi-Fi, which is sometimes erroneously referenced as 5G. This 5G is a whole new ballgame and promises to be a revolution in how we live our daily lives — not merely an evolution of versions past.
Electronic Warfare WeaponTBMG-360682/1/2020
MBDA Hertfordshire, UK +44 (0)1438 752000
Wireless Movement-Tracking System Uses Low-Power Radio Frequency SignalsTBMG-359872/1/2020
A system called Marko uses signal reflections to provide scientists and caregivers with valuable insights into people's behavior and health. Marko transmits a low-power radio-frequency (RF) signal into an environment. The signal will return to the system with certain changes if it has bounced off a moving human. Novel algorithms then analyze those changed reflections and associate them with specific individuals. The system then traces each individual's movement around a digital floorplan. Matching these movement patterns with other data can provide insights about how people interact with each other and the environment.
Atoms Can Receive Common Communications SignalsTBMG-359862/1/2020
A new type of sensor was developed that uses atoms to receive commonly used communications signals. Cesium atoms were used to receive digital bits (1s and 0s) in the most common communications format used in cellphones, Wi-Fi, and satellite TV. In this format, called phase shifting or phase modulation, radio signals or other electromagnetic waves are shifted relative to one another over time. The information (or data) is encoded in this modulation. The method works across a wide range of frequencies.
Electronic Skin for Haptic Interfaces Is Light, Tight, and Battery FreeTBMG-360242/1/2020
A system of “electronic skin-integrated haptic interfaces” jointly developed by City University of Hong Kong (CityU) and other academic institutions can help users of prosthesis to feel the surrounding environment.
Design and Handling Guide Radio Frequency Absorptive Type Wire and Cables (Filter Line, AS85485)AIR4465A (Historical)1/31/2020
This document presents design and application information which will allow optimized utilization of filter line wire and cable purchased to AS85485. Filter line wire is defined and design information is presented. The electrical and mechanical performance characteristics of the wire, along with recommended harnessing methods and techniques, are also presented.
AE-8A Elec Wiring and Fiber Optic Interconnect Sys Install
System Allows Diabetics to Monitor Blood Sugar Without Drawing BloodTBMG-357901/1/2020
Radar and artificial intelligence (AI) technologies have been combined in a system that detects changes in glucose levels without the need for painful finger pricks. The technology could be a smart watch that continuously monitors glucose.
Photovoltaic-Powered SensorsTBMG-3571412/1/2019
Internet of Things devices require batteries that must be replaced frequently, which can be problematic for long-term monitoring. Photovoltaic-powered sensors were developed that could potentially transmit data for years before they need to be replaced. Thin-film perovskite cells — known for their potential low cost, flexibility, and relative ease of fabrication — were mounted as energy-harvesters on inexpensive radio frequency identification (RFID) tags.
Software-Defined Analog Filters: A Paradigm Shift in Radio Filter Performance and Capability19AERP12_0512/1/2019
Among the most abundant components in all wireless system designs, analog RF filters are used to block interference from various internal and external sources. Limited spectrum divided among an ever-increasing number of users is further driving the need for these ubiquitous but in some ways anachronistic devices. Currently, interference is quite common among cellular base stations, satellite systems, radar installations, and other types of access and backhaul communications systems. Traditional filters are unable to cope with the requirements; in many cases, most often due to insufficient guard bandf. For example, in some international locales, LTE base stations and satellite receivers share the L-band frequencies. At around 3.5 GHz, 5G operators, CBRS radios, and military radars are trying to co-exist. To address this in-band interference, a new, tunable filtering technology is entering the marketplace, uniquely blending the best of both analog and digital technologies.
Software-Defined Analog Filters: A Paradigm Shift in Radio Filter Performance and CapabilityTBMG-3566512/1/2019
Among the most abundant components in all wireless system designs, analog RF filters are used to block interference from various internal and external sources. Limited spectrum divided among an ever-increasing number of users is further driving the need for these ubiquitous but in some ways anachronistic devices. Currently, interference is quite common among cellular base stations, satellite systems, radar installations, and other types of access and backhaul communications systems. Traditional filters are unable to cope with the requirements; in many cases, most often due to insufficient guard bandf. For example, in some international locales, LTE base stations and satellite receivers share the L-band frequencies. At around 3.5 GHz, 5G operators, CBRS radios, and military radars are trying to co-exist. To address this in-band interference, a new, tunable filtering technology is entering the marketplace, uniquely blending the best of both analog and digital technologies.
Research on the EMF Impact of Vehicles on Human Health2019-01-504811/4/2019
In recent years, with the rapid development of new energy vehicles, the impact of electromagnetic field (EMF) from vehicles to human body has become a growing concern of consumers. The national standard GB/T 37130-2018 "Measurement methods for electromagnetic field of vehicle with regard to human exposure" was officially released at the end of 2018, which was attracted extensive attention of vehicle manufacturers, testing structures and consumers. GB/T 37130-2018 specifies the test methods for low frequency EMF of vehicles. In this paper, a comparison of the main technical contents between GB/T 37130-2018 standard and International electro technical commission (IEC) standard, Japanese automotive standard organization (JASO) and other relevant standards is present; and then a general survey based on the test method specified in GB/T 37130 standard is carried out by comparing the test results of multiple vehicle models, which can give the reader an intuitive understanding of the EMF level of vehicle.
Jiang, Li, Zhang, Xu, Cai, Shurong, Sun, Kaiyi, Guo, Chen
Robots Track Moving Objects with Sub-Centimeter AccuracyTBMG-3546111/1/2019
A system was developed that uses radio-frequency identification (RFID) tags to help robots target moving objects with unprecedented speed and accuracy. The system could enable greater collaboration and precision by robots working on packaging and assembly, and by swarms of drones carrying out search-and-rescue missions. Robots using the system can locate tagged objects within 7.5 milliseconds, on average, and with an error of less than a centimeter.
Battery-Free Sensor for Underwater UseTBMG-3544311/1/2019
To investigate oceans, researchers aim to build a submerged network of interconnected sensors that sends data to the surface. Supplying constant power to scores of sensors designed to stay for long durations underwater has been a major problem.
Technique Locates Robots and Humans in GPS-Challenged EnvironmentsTBMG-3527810/1/2019
An algorithm enables localization of humans and robots in areas where GPS is unavailable. The Army needs to be able to localize agents operating in physically complex, unknown, and infrastructure-poor environments. This capability is critical to help find dismounted soldiers and for humans and robotic agents to team together effectively.
Wireless Transceiver Quadruples Speed of 5GTBMG-3526810/1/2019
A new wireless transceiver was developed that boosts radio frequencies into 100-gigahertz territory, which is quadruple the speed of the upcoming 5G, or fifth-generation, wireless communications standard. The end-to-end transmitter-receiver is a 4.4-millimeter-square silicon chip capable of processing digital signals significantly faster and more energy-efficiently because of its digital-analog architecture. Having transmitters and receivers that can handle high-frequency data communications is vital for Internet of Things devices, autonomous vehicles, and vastly expanded broadband for streaming of high-definition video content and more.
The Right Stuff for Aging Electronics/Intermittence/No Fault Found2019-01-18899/16/2019
For those in the avionics repair and maintenance business, the acronyms NFF (No Fault Found), NTF (No Trouble Found), and CND (Cannot Duplicate) are, unfortunately, all too familiar terms. After several decades of frustration with this illusive phenomenon, it continues to consume an enormous amount of test and diagnostic effort and is the source of considerable cost and discomfort within the multi-level avionics repair model. There are undoubtedly many causes of NFF and all of them should be addressed. The question is: Where do you start and which solution will be the most beneficial? Our particular efforts have focused on the literal or statistical analysis of NFF, recognizing that if the system’s MTBF (Mean Time Between Failure) has decreased, or if the device's NFF rate has increased with age and deterioration, a physical fault is most likely present. However, if it isn’t found during conventional testing then it probably only fails intermittently. Similarly, having an intermittent failure mode, it in all probability cannot be detected or diagnosed at testing time because of known and demonstrated limitations in the conventional measurement equipment used to perform the tests. In this paper we will outline the problem of intermittence and its testing difficulties. More importantly, we will describe the unique equipment and process which has produced overwhelming success in Intermittence / NFF resolution and MTBF extension. Our team-developed overhaul system called IFDIS 2.0 (Intermittent Fault Detection and Isolation System 2.0) incorporates all the necessary testing procedures and technological capabilities that are proving to be critical to the resolution of the chronic intermittent / NFF problem.
Knudsen, Hector I.
Terahertz Data Links Without Direct Line of SightTBMG-351439/1/2019
Today’s cellular networks and Wi-Fi systems rely on microwave radiation to carry data but the demand for more bandwidth is quickly becoming more than microwaves can handle. That has researchers thinking about transmitting data on higher-frequency terahertz waves, which have as much as 100 times the data-carrying capacity of microwaves. But terahertz communication technology is in its infancy — there is much basic research to be done and plenty of challenges to overcome.
Shape-Shifting Origami Could Help Antenna Systems Adapt On-the-FlyTBMG-351079/1/2019
Conventional reconfigurable electrical and radio frequency (RF) structures commonly used in applications involving real-time reconfigurability in response to fast varying operational scenarios require specialized substrates or complex electrical circuits. Origami-based RF reconfigurable components and modules offer a solution with unique properties. First, they enable re-configurability over continuous-state ranges (as opposed to discrete states). Second, they do not require specialized mechanical support for multilayer frequency-selective surface structures. Moreover, deployable origami-based RF structures can achieve large surface re-configurability ratios from folded to unfolded states. Finally, these structures allow for independent control of multiple figures of merit: bandwidth, frequency of operation, and angle of incidence.
Self-Configurable Radio Receiver System and MethodTBMG-351359/1/2019
A self-configurable radio receiver system was developed for relaying communication signals from multiple deep space assets. Most conventional radio receivers are hardwired to receive a specific type of signal and are incapable of receiving other types of signals without preconfiguration according to a predetermined schedule. The new radio receiver can recognize multiple signal types and autonomously reconfigure itself to decode the particular type of signal that is received.
Conductive Textiles Connect Multiple WearablesTBMG-350939/1/2019
Researchers at the National University of Singapore (NUS) have invented a completely new way for wearable devices to interconnect. They incorporated conductive textiles into clothing to dynamically connect several wearable devices at once. This “wireless body sensor network” allows devices to transmit data with 1,000 times stronger signal than conventional technologies, meaning the battery life of all devices is dramatically improved. Wireless networks of these wearable devices on a body have future applications in health monitoring, medical interventions, and human-machine interfaces.
Shape-Shifting Origami Could Help Antenna Systems Adapt On-the-Fly19AERP09_059/1/2019
Conventional reconfigurable electrical and radio frequency (RF) structures commonly used in applications involving real-time reconfigurability in response to fast varying operational scenarios require specialized substrates or complex electrical circuits. Origami-based RF reconfigurable components and modules offer a solution with unique properties. First, they enable reconfigurability over continuous-state ranges (as opposed to discrete states). Second, they do not require specialized mechanical support for multilayer frequency-selective surface structures. Moreover, deployable origami-based RF structures can achieve large surface reconfigurability ratios from folded to unfolded states. Finally, these structures allow for independent control of multiple figures of merit: bandwidth, frequency of operation, and angle of incidence. The tremendous increase in the number of components in typical electrical and communication modules requires low-cost, flexible, and multifunctional sensing, energy harvesting, and communication modules that can readily reconfigure, depending on changes in their environment. Current subtractive manufacturing-based reconfigurable systems offer limited flexibility (limited finite number of discrete reconfiguration states) and have high fabrication cost and time requirements.
Technology Produces Unclonable Digital Fingerprints for Internet of Things DevicesTBMG-349328/1/2019
Researchers have created technology that is 10 times more reliable than current methods of producing unclonable digital fingerprints that can be used to authenticate devices linked to the Internet of Things (IoT).
Critical Communications Break Out of the Analog MoldTBMG-348768/1/2019
Once firmly rooted in its analog origins, critical communications is now steadily evolving to provide enhanced situational awareness. The latest public safety and military communications (MilCom) radios are more versatile and reliable, supporting ad-hoc networks to improve or enable connectivity. With higher-data-rate capabilities, critical communications solutions can send and receive high-resolution images, videos, and other types of data-intensive content. At the same time, they provide higher-quality voice communications while maintaining security. To ensure communications and interoperability, they still can support analog communications as a failsafe. These myriad capabilities are possible through the ongoing adoption of new technologies, ranging from digital public safety standards and modulation formats, to technologies like wireless local area networking (WLAN) and Long Term Evolution (LTE).
Critical Communications Break Out of the Analog Mold19AERP08_058/1/2019
Military and public safety communications increase digital and data capabilities without sacrificing reliability or interoperability. Once firmly rooted in its analog origins, critical communications is now steadily evolving to provide enhanced situational awareness. The latest public safety and military communications (MilCom) radios are more versatile and reliable, supporting ad-hoc networks to improve or enable connectivity. With higher-data-rate capabilities, critical communications solutions can send and receive high-resolution images, videos, and other types of data-intensive content. At the same time, they provide higher-quality voice communications while maintaining security. To ensure communications and interoperability, they still can support analog communications as a failsafe. These myriad capabilities are possible through the ongoing adoption of new technologies, ranging from digital public safety standards and modulation formats, to technologies like wireless local area networking (WLAN) and Long Term Evolution (LTE).
Products of Tomorrow: July 2019TBMG-347577/1/2019
This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that innovation.
RDS Phrase ListsJ2540/1_201906 (Current)6/11/2019
This SAE Standard provides a table of textual messages meeting the requirements for expressing “Radio Data Systems” (RDS) phrases commonly used in the ITS industry. They can be used both over the RDS subcarrier transmission media as part of a 37-bit long “Group 8a message” as well as being used to provide a common content list of phrases used in a wide number of other media and applications. This document SHALL define the normative index values to be used, extending the CEN established list to provide phrases needed by US practitioners. This standard provides non-normative textual phrases which MAY be used by implementers to ensure intelligible results. This document SHALL follow the formats and rules established in SAE J2540 in the expressions, manipulations, and use of such tables. It should be pointed out that within the rules established by this document a variety of final table are all considered “compliant” with the document, and may vary as fits the needs of implementers.
V2X Core Technical Committee
Graphene-Silicon Devices for Optoelectronics ApplicationsTBMG-346286/1/2019
Silicon is a naturally occurring material commonly used as a semiconductor in electronic devices; however, researchers have exhausted the potential of devices with semiconductors made of silicon only. These devices are limited by silicon’s carrier mobility — the speed at which a charge moves through the material — and indirect bandgap, which limits its ability to release and absorb light.
Programming Light on a ChipTBMG-346066/1/2019
Microwave signals are ubiquitous in wireless communications but interact too weakly with photons. A technique was developed to fabricate high-performance optical microstructures using lithium niobate, a material with powerful electro-optic properties. The new integrated photonics platform can store light and electrically control its frequency (or color) in an integrated circuit. The platform draws inspiration from atomic systems and could have a wide range of applications including photonic quantum information processing, optical signal processing, and microwave photonics.
Algorithm Predicts How Electromagnetic Waves Interact with Materials at the Smallest ScalesTBMG-346146/1/2019
Magnetic materials can attract or repel each other based on their polar orientation — positive and negative ends attract each other, while two positives or two negatives repel. When an electromagnetic signal like a radio wave passes through such materials, a magnetic material acts like a gatekeeper, letting in the signals that are desired but keeping out others. They can also amplify the signal or dampen the speed and strength of the signals.
Helicopter Load SensorTBMG-345326/1/2019
Sensor Technology Ltd. Banbury, Oxon, UK 01869 238400
Multi-Agent RF Propagation SimulatorTBMG-345316/1/2019
A desirable interface between multi-agents is through over-the-air RF connections that include not only the intended direct RF communications paths but also highly variable multi-ray propagation, range attenuation, external RF influences, and near-earth influence. These influences are all difficult to predict, control, and repeat in an outdoor environment. This outdoor testing, as has traditionally been done, is extremely expensive while simultaneously providing fewer data points than more controlled events and the testing events are generally not repeatable.
The ‘Relativity’ of High Q CapacitorsTBMG-345576/1/2019
For many high-power RF applications, the “Q factor” of embedded capacitors is one of the most important characteristics in the design of circuits. This includes products such as cellular/telecom equipment, MRI coils, plasma generators, lasers, and other medical, military, and industrial electronics.
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