scholarly journals Ultrasubwavelength Ferroelectric Leaky Wave Antenna in a Planar Substrate-Superstrate Configuration

2014 ◽  
Vol 2014 ◽  
pp. 1-9
Author(s):  
G. Lovat ◽  
P. Burghignoli ◽  
R. Araneo ◽  
S. Celozzi
Keyword(s):  
Ground Plane ◽  
Ferroelectric Thin Film ◽  
Network Approach ◽  
Equivalent Network ◽  
Leaky Wave ◽  
Beam Radiation ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
Planar Substrate ◽  
Fabry Perot

The possibility of achieving directive fan-beam radiation with planar Fabry-Pérot cavity antennas constituted by an upper ferroelectric thin film and a lower ground plane having ultrasubwavelength thickness is studied by means of a simple transverse-equivalent-network approach and a cylindrical leakywave analysis, deriving simple design formulas. The performance of the proposed antenna is investigated in terms of power density radiated at broadside and directivity in the principal planes, pointing out the main limitations and tradeoffs associated with the reduced thickness.

scholarly journals Periodic Microstrip Leaky Wave Antenna with Double-Sided Shorting Pins and Pairs of Slots

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Yahuan Chen ◽  
Kuang Wang ◽  
Yuanxin Li ◽  
Yunliang Long
Keyword(s):  
Radiation Pattern ◽  
Structural Parameters ◽  
Ground Plane ◽  
Stop Band ◽  
Leaky Wave ◽  
Rectangular Patch ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
Shorting Pin ◽  
Frequency Changes

A backward to forward scanning periodic microstrip leaky wave antenna (MLWA) is presented. The proposed antenna consists of a long rectangular patch with alternating shorting pin on each side, which connects the antenna patch and the ground plane to form periodic shorting circuits. There are two pairs of slots alternately spaced on the long patch to suppress the open stop band (OSB). The OSB problem was initially reduced by optimizing the structural parameters, and the slotting on the patch further improved it. The measured radiation pattern in the y-z plane shows that the antenna can scan electronically from 142° to 39° toward the end-fire (+z direction) when the operating frequency changes from 6 GHz to 12.9 GHz. The measured gain is greater than 5 dBi over the entire operating band.

Novel topology of Fabry-Perot electronically steerable leaky-wave antenna

2012 ◽  
Author(s):  
Raul Guzman-Quiros ◽  
Jose Luis Gomez-Tornero ◽  
Maria Garcia-Vigueras ◽  
Andrew R. Weily ◽  
Y. Jay Guo
Keyword(s):  
Leaky Wave ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
Fabry Perot

Highly Polarized, Directive Radiation From a Fabry-Pérot Cavity Leaky-Wave Antenna Based on a Metal Strip Grating

2010 ◽  
Vol 58 (12) ◽  
pp. 3873-3883 ◽  
Author(s):  
Paolo Burghignoli ◽  
Giampiero Lovat ◽  
Filippo Capolino ◽  
David R. Jackson ◽  
Donald R. Wilton
Keyword(s):  
Metal Strip ◽  
Leaky Wave ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
Fabry Perot
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