TY - JOUR
T1 - Leaky-Wave Antennas Based on Capacitively Tuned Modulated Reactance Surfaces
AU - Panaretos, Anastasios H.
AU - Werner, Douglas H.
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2016
Y1 - 2016
N2 - 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.
AB - 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.
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U2 - 10.1109/LAWP.2015.2469103
DO - 10.1109/LAWP.2015.2469103
M3 - Article
AN - SCOPUS:84963799321
SN - 1536-1225
VL - 15
SP - 678
EP - 681
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
M1 - 7206526
ER -