Universiti Teknologi Malaysia Institutional Repository

Simulation of active integrated antenna with image reject mixer

A. Rahim, Mohamad Kamal and Chong, Wah Kiat and Masri, Thelaha (2007) Simulation of active integrated antenna with image reject mixer. In: Telecommunications and Malaysia International Conference on Communications, 2007. ICT-MICC 2007. IEEE International Conference, 14-17 May 2007, Penang, Malaysia.

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

Abstract

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 1.6 mm. 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 180deg rat race coupler instead of a 90deg 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 90deg hybrid coupler, lumped element 90deg coupler and 180deg rat race coupler.

Item Type:Conference or Workshop Item (Paper)
Additional Information:ISBN : 1-4244-1094-0
Uncontrolled Keywords:FR-4 substrate, active integrated antenna, branch-line hybrid coupler, cost reduction, frequency 2.4 GHz, image reject mixer, image suppression, low pass filter, lumped element coupler, microstrip patch antenna, phase manipulation approach, rat race coupler, singly balanced Schottky diode mixers, size 1.6 mm, size reduction, weight reduction
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:7266
Deposited By: Norhafizah Hussin
Deposited On:02 Jan 2009 03:09
Last Modified:02 Sep 2010 05:41

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