W-band high gain slot array antenna with low sidelobe level

2016 ◽  
Author(s):  
J. Wang ◽  
Y. J. Cheng
Keyword(s):  
High Gain ◽  
Array Antenna ◽  
Sidelobe Level ◽  
W Band ◽  
Low Sidelobe

W ‐band ridge gap waveguide slot array antenna with low sidelobe and high‐gain characteristics

2021 ◽  
Author(s):  
Liang Li ◽  
Jianhong Chen ◽  
Lingwen Kong ◽  
Pengyu Zhang ◽  
Qihao Lv ◽  
...  
Keyword(s):  
High Gain ◽  
Array Antenna ◽  
Waveguide Slot ◽  
W Band ◽  
Low Sidelobe

A Low-Profile and Beam-tilted Continuous Transverse Stub Array Antenna at W-band

2021 ◽  
Vol 36 (7) ◽  
pp. 894-900
Author(s):  
Demiao Chu ◽  
Yujun Xiong ◽  
Ping Li
Keyword(s):  
Transmission Lines ◽  
Design Procedure ◽  
High Gain ◽  
Path Difference ◽  
Array Antenna ◽  
Main Beam ◽  
W Band ◽  
Low Profile ◽  
Parallel Plate Waveguide ◽  
Wave Path

This paper presents a low-profile, high gain, beam-tilted continuous transverse stub (CTS) array antenna at W-band. The antenna compromises 32 radiating slots and is fed by a parallel plate waveguide (PPW) network with a linear source generator. To deflect the outgoing beam, the principle of linear array scanning is adopted to design inverted T-type structure in each stub to introduce wave path difference. PPW network allows the antenna to obtain lower profile compared to other transmission lines. The design procedure, and the antenna characterization are described. The main beam of the antenna is titled 12 degree in H-plane. The simulation and measured results show that this antenna achieves peak gain of 32.4 dB and a 12 degree beam tilt angle at 99GHz. S11 parameters of the antenna is less than -10 dB in a broadband from 96 GHz to 103 GHz. This antenna has an advantage of miniaturization over other high-gain antenna solutions. The promising performance of this proposed CTS antenna reveals the possible candidate for Millimeter wave (MMW) telecommunication applications.

SERIES FEED FAN-BEAM ANTENNA ARRAY WITH A LOW SIDELOBE LEVEL FOR POSITIONING SYSTEM

2020 ◽  
pp. 55-65
Author(s):  
Le Minh Thuy
Keyword(s):  
Antenna Array ◽  
Radiation Pattern ◽  
Amplitude Distribution ◽  
High Gain ◽  
Impedance Bandwidth ◽  
Antenna Element ◽  
Positioning System ◽  
Sidelobe Level ◽  
Single Antenna ◽  
Low Sidelobe

In this paper, a novel antenna array at 5GHz is presented with a low sidelobe level and wide impedance bandwidth for indoor positioning applications . The antenna array has the size of 450 ×57×0.8 mm3 with the high gain of 14.5dBi and the low SLL of -18 dB at 5GHz. The series feed using Unequal Split T-Junction is proposed with the Chebyshev-amplitude distribution to improve SLL. Besides the 1800 phase and amplitude distribution, by deploying driven elements above each single antenna element, the radiation pattern and the gain of the antenna aray are significantly improved.

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