Title :
A Unique 520–590 GHz Biased Subharmonically-Pumped Schottky Mixer
Author :
Schlecht, Erich ; Gill, John ; Dengler, Robert ; Lin, Robert ; Tsang, Ray ; Mehdi, Imran
Author_Institution :
California Inst. of Technol., Pasadena
Abstract :
We report on the design and performance of a novel broadband, biased, subharmonic 520-590 GHz fix-tuned frequency mixer that utilizes planar Schottky diodes. The suspended stripline circuit is fabricated on a GaAs membrane mounted in a split waveguide block. The chip is supported by thick beam leads that are also used to provide precise radio frequency (RF) grounding, RF coupling and dc/intermediate frequency connections. At room temperature, the mixer has a measured double sideband noise temperature of 3000 to 4000 K across the design band.
Keywords :
Schottky diode mixers; gallium arsenide; submillimetre wave mixers; GaAs membrane; frequency 520 GHz to 590 GHz; planar Schottky diode; radio frequency grounding; split waveguide; subharmonic tuned frequency mixer; suspended stripline circuit; temperature 3000 K to 4000 K; Biomembranes; Coupling circuits; Gallium arsenide; Grounding; Noise measurement; Optical coupling; Radio frequency; Schottky diodes; Stripline; Temperature; Schottky diode mixers; submillimeter wave diodes; submillimeter wave mixers;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2007.910506
