Title :
Design of cascaded lumped element quadrature hybrids
Author :
Andrews, D.P. ; Aitchison, C.S.
Author_Institution :
Vectawave Technol. Ltd., Ryde, UK
fDate :
10/1/2001 12:00:00 AM
Abstract :
Methods to implement lumped element quadrature hybrids using a cascade of simpler hybrids are described. Both first and second order cascades are considered in detail, the former requiring an ideal inverting transformer to give an optimum equi-ripple response. Both techniques are employed to design a fourth order hybrid operating over the 10-100 MHz band, and details of fabrication and test results are given, showing consistency with theory
Keywords :
VHF circuits; analogue circuits; cascade networks; linear network synthesis; lumped parameter networks; multiport networks; 10 to 100 MHz; cascaded lumped element auadrature hybrids; fabrication; first order cascades; fourth order hybrid; inverting transformer; optimum equi-ripple response; second order cascades; test results;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings
DOI :
10.1049/ip-map:20010703
