“What is out there that cannot be seen?” This question is asked by many in the scientific and infrastructure communities, and the solutions typically include IR, ultrasound, and radar imaging; individually or a combination of sensors to provide a “picture”, “map” or “image” of the unknown.
Automotive radar, utilizing small, low cost, low power (24 to 77 GHz) and mass
produced sensors are common-placed commercial applications of FMCW radar
today. When used in combination with other sensors, autonomous driving vehicles will
also become common-place within the next few years.
HXI has developed a series of Waveguide Isolators and Circulators in the 71 to 76 GHz and 81 to 86 GHz frequency ranges, specifically designed for the matching and protection of E-band radio, radar and testing systems.
Waveguide Isolators and Circulators
Ideal for modern radars and space applications, Renaissance has designed this X-band drop-in isolator. Operating at 7.9 – 8.4 GHz, this isolator offers great temperature stability, high isolation and low insertion loss.
For high power S-band radar applications, Renaissance has designed a new dual junction isolator that can handle 600 W peak power levels.
HXI’s HBUC series broadband balanced upconverters cover a wide range of waveguide
bands from 26.5 -110 GHz. They utilize a low loss structure mated to a matched pair of GaAs Schottky beam lead diodes for minimum conversion loss and maximum bandwidth. Superior LO noise suppression and LO -RF isolation values are design features.
Upconverters are used to create a millimeter wave signal by combining a lower IF frequency with a higher MMW LO frequency. Dual signals, or double sidebands are produced in this way: LO ± IF (DSB). Optional filters are offered to suppress the unwanted sideband and produce a single sideband (SSB) upconverter. Biased versions
are available for lower LO drive levels.
Series HBUC Datasheet
For use in radar and communication systems, Renaissance has designed an industry first, medium power handling surface mount circulator operating between 9.3 to 9.4 GHz. With a footprint of only 0.630” x 0.615”, it is the smallest high power circulator available in the industry. 3SMH8ND exhibits insertion loss between 0.25 and 0.35 dB and isolation exceeding 25 dB at room temperature.
HXI developed a series of products in the 76 to 81 GHz frequency range specifically designed for the testing of automotive integrated circuits and modules.
Among the products are HXI’s waveguide isolators, HMI12-387-78.5-5.0 (WG-12). This product covers the complete band from 76.0 to 81 GHz without the high loss and long insertion length of a faraday-type isolator.