Title :
Simdified 12-GHz Low-Noise Converter with Mounted Planar Circuit in Waveguide (Short Papers)
Author :
Konishi, Yoshihiro ; Uenakada, Katsuaki ; Yazawa, Norihiko ; Hoshino, Norio ; Takahash, Tadashi
fDate :
4/1/1974 12:00:00 AM
Abstract :
A 12-GHz low-noise converter consisting of a planar circuit mounted in waveguide is described. This circuit consists of a metal sheet with proper patterns that is inserted in the middle of a waveguide parallel to the E plane. All circuit elements required for the converter are pressed or etched. This circuit is very useful for low-cost mass production and good performance. A measured noise figure of 4.5 dB was obtained with a 12-GHz signal frequency and a 420-MHz intermediate frequency.
Keywords :
Diodes; Distributed parameter circuits; Etching; Filters; Frequency measurement; Mass production; Noise figure; Noise measurement; Planar waveguides; Transmission line theory;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.1974.1128248
