C. Luxey et Jm. Laheurte, A retrodirective transponder with polarization duplexing for dedicated short-range communications, IEEE MICR T, 47(9), 1999, pp. 1910-1915
Citations number
16
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
This paper presents a microwave active transponder using a two-port cross-s
haped microstrip antenna, The linearly polarized held coming from an interr
ogating signal is received by the first port, amplified and used as the loc
king signal of a local oscillator. The output signal of this oscillator is
radiated with an orthogonal polarization by the second port of the same ant
enna. Two transponders are then connected in a Van Atta array arrangement t
o provide a retrodirective function, This type of array can be built at low
cost and find application in short-range communications for vehicular syst
ems.