Title :
Analysis and design for Ka-band doubler with CAD technology
Author :
Huang, Xiujiang ; Liu, ZZ ; Yang, Z.
Author_Institution :
Coll. of Opto-electronic Inf., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
fDate :
29 June-1 July 2002
Abstract :
This paper presents theoretical analysis and circuit design of a Ka-band frequency doubler using two beam-lead Schottky barrier diodes as varistors. Characteristics and applications of non-linear components are researched. CAD technology is applied to design the doubler, which includes an anti-parallel diode pair and a microstrip circuit. The influence of the cavity on the microstrip circuit is fully considered during the CAD process and an accurate model is set up. The input circuit and output circuit of a frequency doubler are realized using low loss suspended striplines (suspended LPF, SCPW) and fin lines. Input and output signals are isolated and harmonic components of the output signal are found to be very low by using a unique planar balanced circuit structure. Input frequency is 13∼20 GHz. Output frequency is 26∼40 GHz. Conversion loss is 11.2±1.8 dB. A microwave signal source can thus extend to Ka-band.
Keywords :
Schottky diodes; electronic design automation; fin lines; frequency multipliers; microstrip circuits; microwave diodes; microwave frequency convertors; microwave generation; varistors; 13 to 20 GHz; 26 to 40 GHz; 9.4 to 13 dB; CAD process; CAD technology; Ka-band doubler design; SCPW; anti-parallel diode pair; beam-lead Schottky barrier diode varistors; cavity influence; circuit design; conversion loss; fin line; frequency doubler; harmonic output signal component; input circuit; input frequency; low loss suspended striplines; microstrip circuit; microwave signal source; model; nonlinear components; output circuit; output frequency; planar balanced circuit structure; Circuit synthesis; Cutoff frequency; Design automation; Finline; Low pass filters; Microstrip; Power harmonic filters; Schottky diodes; Stripline; Wideband;
Conference_Titel :
Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on
Print_ISBN :
0-7803-7547-5
DOI :
10.1109/ICCCAS.2002.1179030
