A retrodirective transponder with polarization duplexing for dedicated short-range communications

Author

Luxey, Cyril ; Laheurte, Jean-Marc

Author_Institution

Lab. d´´Electron. Antennes et Telecommun., Nice Univ., Valbonne, France

Volume

47

Issue

9

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

1910

Lastpage

1915

Abstract

This paper presents a microwave active transponder using a two-port cross-shaped microstrip antenna. The linearly polarized field coming from an interrogating signal is received by the first port, amplified and used as the locking signal of a local oscillator. The output signal of this oscillator is radiated with an orthogonal polarization by the second port of the same antenna. Two transponders are then connected in a Van Atta array arrangement to provide a retrodirective function. This type of array can be built at low cost and finds application in short-range communications for vehicular systems

Keywords

active antenna arrays; antenna radiation patterns; directive antennas; electromagnetic wave polarisation; microstrip antenna arrays; microwave oscillators; mobile antennas; transponders; 5.73 GHz; 5.8 GHz; MESFET oscillator; Van Atta array arrangement; dedicated short-range communications; dual-polarized cross-shaped patch antenna; linearly polarized field; local oscillator; locking signal; microwave active transponder; orthogonal polarization; polarization duplexing; radiation pattern; retrodirective transponder; two-port cross-shaped microstrip antenna; vehicular systems; Aperture antennas; Bars; Microstrip antenna arrays; Microstrip antennas; Microwave communication; Oscillators; Polarization; Receiving antennas; Slot antennas; Transponders;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.788529

Filename

788529