Efficiency improvement and cross-polarization reduction of single-fed frequency-scan leaky wave microstrip antennas by using an M-shape metasurface as the WAIM layer

2020 ◽  
Vol 116 ◽  
pp. 153057
Author(s):  
Mahdi Fartookzadeh ◽  
Seyyed Hossein Mohseni Armaki
Keyword(s):  
Microstrip Antennas ◽  
Efficiency Improvement ◽  
Cross Polarization ◽  
Leaky Wave ◽  
Frequency Scan

A Cross Polarization Suppressed Sequential Array with L-Probe Fed Rectangular Microstrip Antennas

2011 ◽  
Vol E94-B (9) ◽  
pp. 2653-2655
Author(s):  
Kazuki IKEDA ◽  
Keigo SATO ◽  
Ken-ichi KAGOSHIMA ◽  
Shigeki OBOTE ◽  
Atsushi TOMIKI ◽  
...  
Keyword(s):  
Microstrip Antennas ◽  
Cross Polarization

Leaky-Wave Antenna Array With a Power-Recycling Feeding Network for Radiation Efficiency Improvement

2017 ◽  
Vol 65 (5) ◽  
pp. 2689-2694 ◽  
Author(s):  
Yunjie Geng ◽  
Junhong Wang ◽  
Yujian Li ◽  
Zheng Li ◽  
Meie Chen ◽  
...  
Keyword(s):  
Antenna Array ◽  
Radiation Efficiency ◽  
Efficiency Improvement ◽  
Leaky Wave ◽  
Leaky Wave Antenna ◽  
Wave Antenna

Substrate Integrated Waveguide-Based Periodic Backward-to-Forward Scanning Leaky-Wave Antenna With Low Cross-Polarization

2018 ◽  
Vol 66 (8) ◽  
pp. 3846-3856 ◽  
Author(s):  
Debabrata K. Karmokar ◽  
Y. Jay Guo ◽  
Pei-Yuan Qin ◽  
Shu-Lin Chen ◽  
Trevor S. Bird
Keyword(s):  
Substrate Integrated Waveguide ◽  
Cross Polarization ◽  
Leaky Wave ◽  
Leaky Wave Antenna ◽  
Wave Antenna

T-type folded SIW-based leaky-wave antennas with wide scanning angle and low cross-polarization

2021 ◽  
pp. 1-6
Author(s):  
Shixiao Xiao ◽  
Lianwu Yang
Keyword(s):  
Transmission Lines ◽  
Cross Polarization ◽  
Frequency Range ◽  
Leaky Wave ◽  
Scanning Angle ◽  
Sinusoidal Modulation ◽  
Wave Characteristics ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
Transverse Slot

Abstract In this paper, a leaky-wave antenna (LWA) with wide scanning angle and low cross-polarization is proposed based on a T-type folded substrate-integrated waveguide (FSIW). Transverse slots with a sinusoidal distribution pattern are etched on the surface of the FSIW so that transmission lines with slow-wave characteristics can excite and radiate −1 order harmonics. The length of the transverse slot affects the dispersion characteristics of the transmission line, and the sinusoidal modulation period controls the operating range of the LWA. In the frequency range of 8.3–15 GHz, the proposed LWA achieves a wide scanning ranging from backward −42° to forward +68° continuously. The cross-polarization of the beam is also kept at less than −30 dB during this scanning. A prototype is fabricated and measured to confirm the design, and the measured results show an agreement with the simulated one.

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