There are many applications, some emerging, that require both phase and amplitude error to be minimised. These applications include synthetic aperture radar using antenna arrays, beamforming/MIMO antenna arrays for communications, actively electronically scanned array (AESA) radar, satellite communications, interference friend or foe (IFF) radar and many other applications. Many of these applications must also place the antennas and cable assemblies that connect the antennas to the transmit/receive circuitry in harsh environments or operating conditions.
Due to the nature of dielectric materials and coaxial assembly construction, cable assemblies experiencing extreme temperature variations can deform. This temperature related deformation can cause increased insertion loss, VSWR degradation and lead to changes in the phase delay of a cable assembly. Air-gaps can even form if the cable assembly isn’t designed correctly and the dielectric material ‘backs-out’ of the connector.
Though some of the thermal degradation is unavoidable, such as the expansion/contraction of inner and outer conductor metal at various temperatures, there are ways to condition a coaxial cable assembly to minimise these temperature related effects. One method to enhance the reliability of coaxial cable assemblies for high temperature variability applications is to thermally pre-condition an assembly that is designed to undergo such treatment.
Temperature conditioned coaxial cable assemblies can also be made to meet military/defence and aerospace standards to offer enhanced high-reliability (Hi-Rel) features. Other design features, such as additional shielding and captivated connector styles, can be used to further enhance the reliability of temperature conditioned coaxial cable assemblies. The result is a cable assembly that is both physically and electrically reliable over time as well as temperature.
Main features of temperatureconditioned RF cable assemblies:
• Built using expanded PTFE low-loss coaxial cable.
• Triple shielded coaxial cable.
• Captivated stainless steel RF connectors.
• J-STD soldering assembly build process and WHMA-A-620 workmanship criteria.
• Lot traceability for all materials.
Key applications include avionics, military electronics, IFF, SATCOM, ECM, industrial/manufacturing, oil/gas and other high-temperature working environments.
THT-configurable male connectors 30 June 2020, Würth Elektronik eiSos
, Interconnection
WR-FAST Fast Connection is the name of a series of THT-configurable male connectors for accommodating single wires with blade receptacles – for example in household appliances. The new connectors are ...
Read more...Bluetooth SiP for wearables and medical devices 30 June 2020, RF Design
, Telecoms, Datacoms, Wireless, IoT
Nordic Semiconductor announced that Tangshan, China-based Tangshan Hongjia Electronic Technology has selected Nordic’s nRF52840 Bluetooth 5.2/Bluetooth Low Energy (Bluetooth LE) advanced multiprotocol ...
Read more...Hybrid and pneumatic modules for modular connectors 30 June 2020, RF Design
, Interconnection
Smiths Interconnect has extended its L modular connector series with the addition of two new module types that complete the company’s wide offering of modular solutions.
The L Series of modular connectors ...
Read more...Adhesive mount combo antenna 30 June 2020, RF Design
, Telecoms, Datacoms, Wireless, IoT
The Taoglas MA256.A is a 3-in-1 adhesive mount combination antenna for use in cases requiring worldwide 4G coverage and GPS/GLONASS/BeiDou/Galileo for positioning. The MA256 has been designed to be mounted ...
Read more...High-speed backplane interconnect solutions 30 June 2020, IPD Electronics
, Interconnection
TE Connectivity’s high-speed backplane connectors offer the flexibility and performance needed for a range of datacom applications, including servers, switches, routers, and optical transport. The company’s ...
Read more...High-density multicoax cable assemblies 30 June 2020, RFiber Solutions
, Interconnection
Withwave’s high-speed and high-density multicoax cable assemblies (WMX Series) provide a wide range of multiple coax connectors and flexible cable assemblies with a choice of 20, 40, 50 and 67 GHz configurations ...
Read more...Small form factor 5G/4G antenna 30 June 2020, RF Design
, Telecoms, Datacoms, Wireless, IoT
The Taoglas Olympian II G45 is a low-profile, robust external 5G/4G antenna. The permanent mount antenna has a small form factor at only 48,5 mm tall and 50 mm in diameter. It is ideal for external use, ...
Read more...Cellular chipset for global low-power IoT 30 June 2020, RF Design
, Telecoms, Datacoms, Wireless, IoT
The UBX-R5 Series from u-blox is a global multi-band cellular chipset that supports LPWA, LTE-M and NB-IoT technologies. It is optimised for IoT applications such as smart metering, telematics, tracking, ...
Read more...Surface mount resistors and terminations 30 June 2020, RF Design
, Passive Components
Smiths Interconnect announced the release of its extended CXH series of surface mount chip resistors and terminations. The CXH series uses a patented layout to provide improved power handling over conventional ...
Read more...Circular connectors for power, signals and data 30 June 2020, TRX Electronics
, Interconnection
Standardised circular connectors have become the industry standard across a wide range of applications. Customers can find the right option for their most innovative designs with Phoenix Contact’s PLUSCON ...
printer friendly version