Title :
A zero-bias single-device balanced E-PHEMT mixer with conversion gain for RFID applications
Author :
Garcia, J.A. ; Malaver, E. ; Cabria, L.
Author_Institution :
Dept. of Commun. Eng., Cantabria Univ., Santander, Spain
Abstract :
A zero-bias single-device singly-balanced mixer, using an enhancement mode pseudomorphic HEMT (E-PHEMT) is proposed. The mixer takes advantage of the slightly positive pinch-off voltage in this kind of device, for providing gain conversion with an acceptable linearity and avoiding the use of DC bias. A lab model has been designed to be used in an RFID tag, where a low frequency local data signal is up-converted to the 900MHz frequency band, once the device is excited with an interrogating carrier.
Keywords :
HEMT integrated circuits; MMIC mixers; UHF integrated circuits; UHF mixers; identification technology; 900 MHz; DC bias; RFID; balanced E-PHEMT mixer; conversion gain; enhancement mode pseudomorphic HEMT; gain conversion; interrogating carrier; linearity; low frequency local data signal; pinch-off voltage; radio frequency identification schemes; zero-bias single-device mixer; Amplitude modulation; Control systems; Energy consumption; FETs; Frequency; Linearity; Mixers; PHEMTs; Radiofrequency identification; Voltage control;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1212611
