Title :
A Sub-100
Ku-Band RTD VCO for Extremely Low Power Applications
Author :
Jeong, Yongsik ; Choi, Sunkyu ; Yang, Kyounghoon
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Abstract :
This letter presents the microwave performance of a sub-100 ??W Ku-band differential-mode resonant tunneling diode (RTD)-based voltage controlled oscillator (VCO) with an extremely low power consumption of 87 ??W using an InP-based RTD/HBT MMIC technology. In order to achieve the extremely low-power Ku-band RTD VCO, the device size of RTD is scaled down to 0.6 ?? 0.6 ??m2. The obtained dc power consumption of 87 ??W is found to be only 1/18 of the conventional-type MMIC VCOs reported in the Ku-band. The fabricated RTD VCO has a phase noise of -100.3 dBc/Hz at 1 MHz offset frequency and a tuning range of 140 MHz with the figure-of-merit (FOM) of -194.3 dBc/Hz.
Keywords :
MMIC oscillators; heterojunction bipolar transistors; low-power electronics; resonant tunnelling diodes; voltage-controlled oscillators; FOM; Ku-band RTD VCO; RTD/HBT MMIC; differential-mode resonant tunneling diode; figure-of-merit; low power consumption; phase noise; power 87 muW; size 0.6 mum; voltage controlled oscillator; Heterojunction bipolar transistor (HBT); Ku-band; resonant tunneling diode (RTD); voltage controlled oscillator (VCO);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2009.2027071