Title :
A 90–100 Ghz 4×4 sige BiCMOS polarimetric transmit-receive phased array with simultaneous receive-beams capabilities
Author :
Golcuk, Faith ; Kanar, Tumay ; Rebeiz, Gabriel M.
Author_Institution :
Univ. of California, San Diego, La Jolla, CA, USA
Abstract :
This paper presents a 4×4 transmit/receive SiGe BiCMOS phased array at 90-100 GHz with vertical and horizontal polarization capabilities, and 3-bit amplitude and 4-bit phase control. The 4×4 phased array fits into a 1.6×1.5 mm2 grid, which is required at 94 GHz for wide scan-angle designs. This is accomplished using dual-nested 16:1 Wilkinson combiners/divider with > 40 dB isolation between the dual-receive beams. Measurements show ±0.6 dB and ±0.75 dB variation between the array elements in the transmit (Psat) and receive mode, and <; -40 dB coupling between the elements for transmit, receive and dual-receive modes. The application areas are in W-band radar systems.
Keywords :
BiCMOS integrated circuits; Ge-Si alloys; field effect MIMIC; millimetre wave radar; phased array radar; power combiners; power dividers; radar polarimetry; semiconductor materials; BiCMOS polarimetric transmit-receive phased array; SiGe; W-band radar systems; array elements; dual-nested 16:1 Wilkinson combiner-divider; dual-receive beams; frequency 90 GHz to 100 GHz; horizontal polarization capability; phase control; simultaneous receive-beams capability; vertical polarization capability; wide scan-angle designs; word length 3 bit; word length 4 bit; Antennas; Arrays; Gain; Loss measurement; Phase measurement; Phase shifters; Switches; Phased array; SiGe BiCMOS; T/R module; W-band; phase shifter;
Conference_Titel :
Phased Array Systems & Technology, 2013 IEEE International Symposium on
Conference_Location :
Waltham, MA
DOI :
10.1109/ARRAY.2013.6731809
