Universiti Teknologi Malaysia Institutional Repository

Compact dual-port polarization-reconfigurable antenna with high isolations for MIMO application

Osman, Mohamed Nasrun and Abdul Rahim, M. K. and Hamid, Mohamad Rijal and Mohd. Yusoff, Mohd. Fairus and A. Majid, Huda (2016) Compact dual-port polarization-reconfigurable antenna with high isolations for MIMO application. IEEE Antennas and Wireless Propagation Letters, 15 . pp. 456-459. ISSN 1536-1225

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Abstract

This letter proposes the design of a dual-port microstrip patch antenna with polarization reconfigurability features. The reconfigurability is realized through the modification of the feed network. The antenna consists of a circular-shaped patch on the upper substrate as a radiating element, and a coplanar-waveguide (CPW) slotline transmission located in the ground plane. To obtain a good impedance matching, the CPW slotline is terminated with a tapered impedance transformer. Dual ports are constructed by utilizing the CPW feeding structure and the odd and even feedline modes of the CPW. Four p-i-n diodes are used as switches to alter the flow of the current. The p-i-n diodes are placed on the CPW transmission slotline interjunction. Consequently, the excited polarization can be altered and determined, depending on the switch configurations. This antenna demonstrates good port-to-port isolation and a compact structure and is suitable to be used in systems that operate in a wireless local area network (WLAN) frequency band.

Item Type:Article
Uncontrolled Keywords:Antenna grounds, Coplanar waveguides, Frequency bands, Local area networks, Microstrip antennas, Polarization, Slot antennas, Waveguides, Wireless local area networks (WLAN), Coplanar wave-guide (CPW), Feeding networks, Impedance transformers, isolation, Micro-strip patch antennas, Port-to-port isolation, Reconfigurability, Reconfigurable antenna, Antenna feeders
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:71252
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:15 Nov 2017 04:47
Last Modified:15 Nov 2017 04:47

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