A high-performance integrated K-band diplexer

Author

Brown, Andrew R. ; Rebeiz, Gabriel M.

Author_Institution

Dept. of Electr. Eng., Michigan Univ., Ann Arbor, MI, USA

Volume

47

Issue

8

fYear

1999

fDate

8/1/1999 12:00:00 AM

Firstpage

1477

Lastpage

1481

Abstract

This paper describes the design and measurement of a planar diplexer integrated on a single silicon substrate. The diplexer channels are 5% and 6.5% relative bandwidth at 28 and 31 GHz, respectively. The diplexer is based on a micropackaged membrane supported capacitively coupled microstrip structure and is 1.5 cm×1.6 cm and only 1.4 mm thick. The measured insertion loss is 1.4 dB (5%) and 0.9 dB (6.5%) for the two channels with better than 35 dB isolation in the 28 GHz band and better than 50 dB isolation in the 31 GHz band. The measured results include all transition and packaging effects. The diplexer has coplanar-waveguide ports and can easily be integrated with other elements such as planar antennas, low-noise amplifier, and power amplifiers

Keywords

band-pass filters; coplanar waveguide components; microstrip filters; microwave filters; millimetre wave filters; packaging; passive filters; silicon; 28 GHz; 31 GHz; CPW ports; EHF; Ka-band planar diplexer; Si; Si substrate; capacitively coupled microstrip structure; coplanar-waveguide ports; high-performance integrated diplexer; micropackaged membrane; packaging effects; Antenna measurements; Bandwidth; Biomembranes; Insertion loss; K-band; Loss measurement; Low-noise amplifiers; Microstrip; Packaging; Silicon;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.780398

Filename

780398