DocumentCode
3551444
Title
A branch-line-type eight-port comparator circuit
Author
Kawai, T. ; Iio, K. ; Ohta, I. ; Kaneko, T.
Author_Institution
Fac. of Eng., Himeji Inst. of Technol., Japan
fYear
1991
fDate
10-14 July 1991
Firstpage
869
Abstract
A method of constructing an eight-port comparator with four branch-line 3 dB quadrature hybrids is described theoretically and experimentally. A relative bandwidth of up to 20% (for return loss and isolation better than 20 dB) is obtained by addition of simple external circuits. A strong point of the present comparator is that it is manufactured on the same face of a substrate using a planar transmission line such as a stripline or a microstrip line.<>
Keywords
S-parameters; comparators (circuits); multiport networks; strip lines; waveguide couplers; S-parameters; branch-line-type eight-port comparator circuit; isolation; microstrip line; planar transmission line; quadrature hybrids; relative bandwidth; return loss; stripline; Admittance; Bandwidth; Circuits; Couplers; Frequency; Isolation technology; Manufacturing; Microstrip; Planar transmission lines; Scattering parameters;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Symposium Digest, 1991., IEEE MTT-S International
Conference_Location
Boston, MA, USA
ISSN
0149-645X
Print_ISBN
0-87942-591-1
Type
conf
DOI
10.1109/MWSYM.1991.147145
Filename
147145
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