Integrated active antenna with full duplex operation

Author

Cryan, Martin J. ; Hall, Peter S. ; Tsang, S. H Kenneth ; Sha, Jizhang

Author_Institution

Sch. of Electron. & Electr. Eng., Birmingham Univ., UK

Volume

45

Issue

10

fYear

1997

fDate

10/1/1997 12:00:00 AM

Firstpage

1742

Lastpage

1748

Abstract

This paper discusses the design and implementation of a novel two-element active transmit-receive array using dual linear polarization and sequential rotation. Each element includes an integrated oscillator and amplifier mounted on orthogonal edges of a square patch, such that the transmit and receive paths are isolated and polarization duplexed. The array gives in excess of 45-dB transmit-receive isolation with an output power of 5.4 dBm and a receive gain of 8.2 dB at 4.05 GHz. Link budget calculations are used to show expected system performances. These active antennas have potential uses in both short-range communication and radar systems

Keywords

active antenna arrays; microstrip antenna arrays; 4.05 GHz; 8.2 dB; amplifier; dual linear polarization; duplex operation; integrated active antenna; isolation; link budget; oscillator; radar; sequential rotation; short-range communication; square patch; two-element transmit-receive array; Linear antenna arrays; MESFETs; Microstrip antennas; Oscillators; Polarization; Radar antennas; Receiving antennas; Resonance; Transformers; Transmitting antennas;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.641721

Filename

641721