Fabrication of hyperabrupt GaAs varactor diode for W-band waveguide VCO

In this work, we fabricated a hyperabrupt varactor diode and W-band waveguide VCO using fabricated varactor diode. With the anode diameter of 90 ¿m, a maximum reverse breakdown voltage of 40 V at a leakage current of 30 ¿A, a maximum capacitance of 5.82 pF, and a minimum capacitance of 0.7 pF were o...

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Published in2009 Asia Pacific Microwave Conference pp. 1691 - 1694
Main Authors Seok-Gyu Choi, Yong-Hyun Baek, Sun-Woo Park, Seung-Hyun Hong, Tae-Jong Baek, Min Han, Dong-Sik Ko, Mi-Ra Kim, Jin-Koo Rhee
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2009
Subjects
Anodes
Bandwidth
Capacitance
Diodes
Gallium arsenide
Leakage current
Linearity
Millimeter wave devices
Optical device fabrication
Varactors
Voltage controlled oscillators (VCOs)
Voltage-controlled oscillators
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Summary:In this work, we fabricated a hyperabrupt varactor diode and W-band waveguide VCO using fabricated varactor diode. With the anode diameter of 90 ¿m, a maximum reverse breakdown voltage of 40 V at a leakage current of 30 ¿A, a maximum capacitance of 5.82 pF, and a minimum capacitance of 0.7 pF were obtained, resulting in a C max /C min ratio of 8.31. Fabricated VCO showed an excellent linearity of 1.6 % within 800 MHz. The bandwidth of the VCO was 1.165 GHz from 93.305 GHz to 94.47 GHz, and the output power was from 14.6 dBm to 15.42 dBm.
ISBN:9781424428014
1424428017
ISSN:2165-4727
2165-4743
DOI:10.1109/APMC.2009.5384303