Title :
Influence of quantization errors on the development of vector modulator based phaseshifter for use in smart antenna applications
Author :
Manu, Octavian ; Dimian, Mihai ; Graur, Adrian
Author_Institution :
Dept. of Comput., Electron. & Automations, Stefan cel Mare Univ. of Suceava, Suceava, Romania
Abstract :
This paper presents the development of an advanced radiofrequency phase shifter operating on ultra-high frequency (UHF) band for use in phased antenna array or smart antenna applications. The proposed solution is based on a vector modulator design which allows a phase change from 0 to 360 degree and also a variation of the gain between -3dB to -30dB. The frequency response of the vector modulator is between 700MHz and 1GHz, thus covering the UHF RFID band from 865MHz to 868MHz. The effects of quantization errors induced by the resolution of digital to analog converters used to drive the phaseshifter, over the phase shifts and gain variation, were analyzed.
Keywords :
UHF antennas; UHF phase shifters; adaptive antenna arrays; antenna phased arrays; digital-analogue conversion; frequency response; quantisation (signal); UHF antennas; UHF phase shifters; advanced radiofrequency phase shifter; digital to analog converters; frequency 700 MHz to 1 GHz; frequency response; gain variation; phased antenna array; quantization errors; smart antenna; vector modulator based phase shifter; Antenna radiation patterns; Arrays; Attenuation; Phase shifters; Phased arrays; Vectors; phase shifter; phased antennas; smart antennas; vector modulator;
Conference_Titel :
Design and Technology in Electronic Packaging (SIITME), 2011 IEEE 17th International Symposium for
Conference_Location :
Timisoara
Print_ISBN :
978-1-4577-1276-0
Electronic_ISBN :
978-1-4577-1275-3
DOI :
10.1109/SIITME.2011.6102736
