Frequency and beam reconfigurable antenna using photoconducting switches
By Chinthana Panagamuwa, A. Chauraya, J. Vardaxoglou. IEEE Transactions on Antennas and Propagation, 2006
357 citations recorded by the source corpus.
A design for an optically reconfigurable printed dipole antenna is presented. A wideband coplanar waveguide (CPW) to coplanar stripline (CPS) transition is used to feed the balanced printed dipole. Two silicon photo switches are placed on small gaps in both dipole arms equidistant from the centre feed. Light from two infrared laser diodes channelled through fiber optic cables is applied to the switches. With the gaps in the dipole bridged, the antenna resonates at a lower frequency. Measured return loss results that compare well to the simulated values are also presented, showing a frequency shift of nearly 40%. The change in bore-sight gain along with radiation patterns are also presented. Activating each switch individually results in a near 50/spl deg/ shift in beam nulls.
Subfields: Aerospace Engineering, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/3a3e39df7718cb9c501eb94388959ded180978ad
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Citations in the corpus
- Yagi Patch Antenna With Dual-Band and Pattern Reconfigurable Characteristics (2007, background): “With the rapid technological development of photonic switches [3], the nonideal effect of the switches on the design of the antenna could be dramatically reduced and even ignored.”
- Optically Pumped Frequency Reconfigurable Antenna Design (2010, methodology): “In [6], the authors used an n-type silicon switch doped with phosphorus to increase its conductivity.”
- Frequency-reconfigurable antennas for multiradio wireless platforms (2009, neutral): “using silicon photoconducting switches instead [7].”