Varactor diode measurements
作者:
F.J.Hyde,
S.Deval,
C.Toker,
期刊:
Radio and Electronic Engineer
(IET Available online 1966)
卷期:
Volume 31,
issue 2
页码: 67-75
年代: 1966
DOI:10.1049/ree.1966.0010
出版商: IERE
数据来源: IET
摘要:
A comparison has been made of the ‘relative impedance’ and ‘transmission’ techniques of measuring the small-signal parameters of varactor diodes. Relative-impedance measurements have been made at u.h.f. and X-band and transmission measurements at X-band. It has been shown that losses associated with the matching circuit used in relative-impedance measurements can give rise to a degraded diode specification. Their effect is less if reduced-height waveguide is used at X-band. The transmission method leads to the most favourable specification for a diode. The measurements support the representation of the diode by a simple equivalent circuit to a first order
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