Title :
Transponder using SIW based negative and zeroth order resonance dual-band antenna and sub-harmonic self-oscillating mixer
Author :
Wu, Chung-Tse Michael ; Dong, Yuandan ; Itoh, Tatsuo
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Los Angeles, CA, USA
Abstract :
A simple active transponder using a substrate integrated waveguide (SIW) based dual-band antenna and a self-oscillating mixer is proposed. Making use of the negative first mode and zeroth order mode of the SIW based slot antenna, we designed the dual-band antenna operating at around 2.45GHz and 5.85GHz (industrial-scientific-medical bands). Due to the resonance of the diplexer and antenna, the self-oscillating mixer oscillates at around 1.7GHz, providing a second harmonic which can be used to up-convert 2.45GHz input signal into 5.85GHz output. Furthermore, the proposed transponder only needs one DC bias for drain at 1.5V, which should be useful for portable devices with single battery.
Keywords :
UHF mixers; microwave antennas; multifrequency antennas; multiplexing equipment; resonance; slot antennas; substrate integrated waveguides; transponders; DC bias; SIW-based negative resonance dual-band antenna; SIW-based slot antenna; SIW-based zeroth order resonance dual-band antenna; antenna resonance; diplexer resonance; portable device; subharmonic self-oscillating mixer; substrate integrated waveguide-based dual-band antenna; Dual band; Microwave antennas; Mixers; Oscillators; Resonant frequency; Transponders; Transponder; self-oscillating mixer; sub-harmonic; substrate integrated waveguide;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
