Abstract
A reconflgurable beam forming antenna prototype using a spiral feed line is proposed in this paper. The presented antenna is integrated with PIN diode switches at a speciflc location of spiral feed line. It is discovered that the beam steering ability is greatly in∞uenced by the spiral arm feed network. Four PIN diode switches have been incorporated at four difierent arms of spiral feed line to realize a beam forming ability. The intelligence behaviour of this antenna is conferred when the switches are connected to programmable intelligent computer (PIC) microcontroller. Certain conflgurations of PIC allow the antenna's radiation patterns to be adaptively changed within 0.01ms. Therefore, the proposed antenna is capable of electronically forming the beam up to four difierent angles of +176 - , +10 - , i1 - and i12 - . This antenna is small in size with 100mm by 100mm of substrate dimension. In this research, the site fleld antenna performance relying on the received signal strength (RSS) testing is tested intensively in Universiti Malaysia Perlis with varied distant points of line-of- sight (LOS) and non-line-of-sight (NLOS) propagation. With good simulation and measurement results, this antenna could be a promising candidate to be installed in applications such as a smart antenna system, cognitive radio, WiMAX and long term evolution (LTE).
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
