Universiti Teknologi Malaysia Institutional Repository

Simulation of active integrated antenna with image reject mixer

Rahim, M. K. A. and Chong, Wah Kiat and Masri, T. (2007) Simulation of active integrated antenna with image reject mixer. In: Proceeding of the 2007 IEEE International Conference on Telecommunication nad Malaysia International Conference on Communications, 14-17 May 2007, Penang, Malaysia.

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Official URL: http://dx.doi.org/10.1109/ICTMICC.2007.4448621


Active integrated antenna with image reject mixer(AIA with IRM) operating at licenseless frequency of 2.4 GHz and intermediate frequency (IF) of 50 MHz is proposed. In this work, IRM is integrated with microstrip patch antenna on the similar substrate to attain size, weight and cost reduction. The suitable substrate that serves as the common platform for all integral components is FR-4 with dielectric constant of 4.7 and thickness of 1.6mm. This AIA with IRM employs a different phase manipulation approach from the of the previous research in which the RF signal from the antenna is initially fed to 180 rat race coupler instead of a 90 coupler. Practically, this system is able to achieve image suppression with an isolation of approximately 20 dB between image and desired frequency with 7 dBm LO drive at 2.35 GHz. The integral components of AIA with IRM consist of 2-elements microstrip rectangular patch antenna, singly balanced schottky diode mixers, low pass filter,branch-line 900 hybrid coupler, lumped element 90 coupler and 180 rat race coupler

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Active integrated antenna, image reject mixer, microstrip antenna, down conversion
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:7149
Deposited By: Maznira Sylvia Azra Mansor
Deposited On:02 Jan 2009 03:20
Last Modified:01 Jun 2010 15:49

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