Title :
Constant loss miniature 45nm RF-CMOS 24 GHz phase shifter
Author :
Zlotnikov, T.V. ; Degani, O. ; Nemirovsky, Y.
Author_Institution :
Departmet of Electr. Eng., Technion - Israel Inst. of Technol., Haifa, Israel
Abstract :
We present design and characterization of an integrated passive analog phase shifter at 24 GHz in a commercially available 45 nm RF-CMOS process. The design is based on a well known RC bridge topology which was optimized for maximum phase shift and minimal amplitude response variation versus phase and frequency. Phase is controlled by varying DC voltage on a varactor, resulting in 60° maximum phase shift with 0.1 dB amplitude variation at 24 GHz. The size of the phase shifter circuit excluding pads and input/output buffers is 40×50 ¿m2.
Keywords :
CMOS analogue integrated circuits; MMIC phase shifters; RC circuits; circuit optimisation; field effect MMIC; integrated circuit design; network topology; RC bridge topology; RF-CMOS phase shifter; circuit optimisation; frequency 24 GHz; input-output buffers; integrated passive analog phase shifter; minimal amplitude response variation; pads; size 45 nm; Bridge circuits; CMOS technology; Frequency; Network topology; Phase measurement; Phase shifters; Phased arrays; Power transmission lines; Semiconductor device measurement; Varactors; CMOS analog integrated circuits; Passive phase shifters; phased arrays;
Conference_Titel :
Microwaves, Communications, Antennas and Electronics Systems, 2009. COMCAS 2009. IEEE International Conference on
Conference_Location :
Tel Aviv
Print_ISBN :
978-1-4244-3985-0
DOI :
10.1109/COMCAS.2009.5386073
