Switchable beam diversity antenna

Variable-length parasitic elements provide useful implementation of antenna pattern direction. A switching system is used to change the length of the parasitic elements, which directly affects the role of the elements on the beam direction. Energizing or de-energizing the switching system can rotate...

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Bibliographic Details
Main Authors: Elkamchouchi, H.S.M., Hafez, H.E.-D.M.
Format: Conference Proceeding
Language:English
Subjects:
Antenna radiation patterns
Directive antennas
Fading
Mobile communication
Moment methods
Receiving antennas
Senior members
Slot antennas
Switches
Switching systems
Citations: Items that cite this one
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Description
Summary:Variable-length parasitic elements provide useful implementation of antenna pattern direction. A switching system is used to change the length of the parasitic elements, which directly affects the role of the elements on the beam direction. Energizing or de-energizing the switching system can rotate the radiation pattern. In other words, the radiation pattern can be directed by increasing or decreasing the length of the parasitic elements. The basic principle is presented with an example of a wire antenna computed using the method of moments. The advantage of the switched parasitic elements concept is that it is a relatively simple system, which can give the adaptive antenna performance of many branch selection or switched diversity.
DOI:10.1109/ICMMT.2002.1187715