Leaky-Wave Antennas Based on Capacitively Tuned Modulated Reactance Surfaces

Anastasios H. Panaretos, Douglas H. Werner

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


The performance of a leaky-wave antenna that utilizes a sinusoidally modulated reactance surface is numerically investigated. In contrast to previously reported design methodologies, the sinusoidal reactance fluctuation is introduced in the structure by using lumped capacitors that load a frequency selective surface composed of simple uniformly distributed metallic strips. A key advantage of the approach presented herein is that it provides a pathway to realizing a reconfigurable surface impedance by allowing the lumped elements to be tunable. Using a 2-port network representation of the sub-unit-cell, the required capacitance-to-reactance map, necessary to determine the capacitor values that yield the desired sinusoidal reactance profile, can be rapidly extracted.

Original languageEnglish (US)
Article number7206526
Pages (from-to)678-681
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
StatePublished - 2016

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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