Industrial/Scientific/Medical Channel

Wideband Noise Parameter Measurements at Hot and Cryogenic Temperatures

For LNAs with exceptionally low noise temperatures — on the order of just 1 or 2 K — the measurement of noise performance is difficult and subject to systematic errors from noise source uncertainties. NoiseTech Microwave offers a line of solid-state impedance generators with cryogenic capabilities, supporting a cold noise parameter measurement approach. The impedance generator presents four signal source impedances at the input to the device under test, enabling noise parameters to be deterministically extracted.


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Micro Harmonics Introduces 58-64 GHz Circulator, Extends Isolators to 325 GHz

Micro Harmonics, a small business specializing in ferrite-based millimeter wave components, announced the availability of its initial circulator product, the YC148, covering 58 to 64 GHz. The company is also extending its line of Faraday rotation isolators from WR12 (60 to 90 GHz) to WR3.4 (220 to 325 GHz). Prototypes of WR5.1, WR4.3 and WR3.4 designs are being evaluated and will be released by summer.


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