Branch-Line Coupler Design Operating in Four Arbitrary Frequencies
Artikel i vetenskaplig tidskrift, 2012

This letter presents a successful design approach for a branch-line coupler operating in four arbitrary frequencies. An optimized compensation technique is adopted to fulfill satisfactory matching, transmission and isolation properties within each operating band. Based on the simple planar microstrip technology, the proposed quad-band coupler has been realized and tested. A return loss better than 16 dB, together with an amplitude imbalance limited to 0.3 dB and an isolation higher than 17.5 dB, have been experimentally measured on each operating band, validating the proposed design methodology.

branch-line

quad-band

dual-band

Balanced

passive

multi-band

coupler

Författare

L. Piazzon

Universita degli Studi di Roma Tor Vergata

Paul Saad

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

P. Colantonio

Universita degli Studi di Roma Tor Vergata

F. Giannini

Universita degli Studi di Roma Tor Vergata

Kristoffer Andersson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Christian Fager

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

IEEE Microwave and Wireless Components Letters

1531-1309 (ISSN)

Vol. 22 2 67-69

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1109/LMWC.2011.2181349