By Topic

A 54–862 MHz CMOS direct conversion transceiver for IEEE 802.22 cognitive radio applications

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

7 Author(s)
Jongsik Kim ; Kwangwoon Univ., Seoul, South Korea ; Seung Jun Lee ; Seungsoo Kim ; Jong Ok Ha
more authors

A CMOS single-chip transceiver IC is developed for IEEE 802.22 cognitive radio applications. Over the 54 to 862 MHz ultra wideband, the in-band harmonic distortions of the transmitter and the unwanted harmonic mixing of the receiver are effectively suppressed by exploiting the dual-path direct-conversion architecture. A seamless coverage of the full band is achieved by employing a fractional-N PLL with a single LC VCO and a multi-modulus LO generator. Implemented in 0.18 mum CMOS, the receiver achieves 110 dB gain dynamic range, < 8.5 dB noise figure, and > -11 dBm IIP3 at the LNA bypass mode. The transmitter delivers -3 dBm output power with OP1dB and OIP3 greater than +6.4 dBm and +15.9 dBm, respectively. On-chip calibration circuits suppress the image and carrier leakage components below -41 dBc across the total band.

Published in:

Custom Integrated Circuits Conference, 2009. CICC '09. IEEE

Date of Conference:

13-16 Sept. 2009