E-Band High Gain Gap Waveguide Slot Array Antenna with ETSI Class-III Radiation Pattern Suitable for Mass Production

In this paper, we proposed a radiation pattern reconfigurable waveguide slot array antenna using liquid crystal (LC). Together with the waveguide slot, the designed complementary electric-field-coupled resonator functions like a switch controlled by the dielectric constant of the LC, which can control the antenna element to radiate or not. Thus, the array factor and radiation pattern can be manipulated. The proposed antenna was simulated, fabricated, and measured. Its radiation direction can be reconfigured to 46° or 0° at about 15 GHz.

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A high gain-bandwidth, nearly omnidirectional waveguide slot array antenna

2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting ◽

10.1109/aps.2015.7304497 ◽

2015 ◽

Author(s):

Rintu Kumar Gayen ◽

Sushrut Das ◽

Ashmi Chakraborty Das

Keyword(s):

High Gain ◽

Array Antenna ◽

Gain Bandwidth ◽

Waveguide Slot

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W-Band Waveguide Slot Array Antenna with High Gain Based on Rectangular Micro-Coaxial Process

10.1109/iceict53123.2021.9531187 ◽

2021 ◽

Author(s):

Minjie Shu ◽

Weiwei Liu ◽

Jianxing Li ◽

Yuanxi Cao ◽

Cheng Guo ◽

...

Keyword(s):

High Gain ◽

Array Antenna ◽

Waveguide Slot ◽

W Band

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Polarizer superstrate and SRR-loaded high-gain dual band dual polarized waveguide slot array antenna

International Journal of RF and Microwave Computer-Aided Engineering ◽

10.1002/mmce.21225 ◽

2017 ◽

Vol 28 (4) ◽

pp. e21225

Author(s):

Avinash Chandra ◽

Sushrut Das

Keyword(s):

High Gain ◽

Array Antenna ◽

Dual Band ◽

Waveguide Slot ◽

Dual Polarized

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Novel Design of High-Gain Planar Dipole-Array Antenna for RFID 2.45 GHz

International Journal of Antennas and Propagation ◽

10.1155/2014/704974 ◽

2014 ◽

Vol 2014 ◽

pp. 1-6 ◽

Cited By ~ 2

Author(s):

Danpeng Xie ◽

Xueguan Liu ◽

Huiping Guo ◽

Xinmi Yang

Keyword(s):

Radiation Pattern ◽

High Gain ◽

Base Station ◽

Array Antenna ◽

Phase Retardation ◽

Parallel Lines ◽

Novel Design ◽

Radiation Direction ◽

Peak Gain

This paper presents a novel high-gain planar dipole-array antenna for 2.45 GHz which consists of four planar dipole elements placed in two parallel lines. Phase retardation of each element is set by feeding network to form controllable radiation direction. The radiation pattern of the array is discussed according to Arrays Theorem. The measured −10 dB band is from 2.3 GHz to 2.57 GHz, and peak gain in this band is 7.5 dBi. The gain can even reach 10.5 dBi after installing additional ground. The proposed antenna has advantages of high gain, controllable direction, and planarity which are suitable for 2.45 GHz RFID base station.

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Switch-Beam Vivaldi Array Antenna Based On 4x4 Butler Matrix for mmWave

MATEC Web of Conferences ◽

10.1051/matecconf/201821803011 ◽

2018 ◽

Vol 218 ◽

pp. 03011

Author(s):

Nurlaila Safitri ◽

Rina Pudji Astuti ◽

Bambang Setia Nugroho

Keyword(s):

Radiation Pattern ◽

Single Layer ◽

High Gain ◽

Array Antenna ◽

Low Loss ◽

Butler Matrix ◽

Directional Radiation ◽

Phase Setting ◽

Vivaldi Antenna ◽

Fixed Beam

It will be diffcult to use either omnidirectional or fixed beam antenna due to the high propagation losses caused by atmospheric absorption at mmWave for 5G mobile communication. Several studies have been conducted recently using butler matrix which is part of switchable antenna with some advantages such as simple, minimal cost, low loss, etc. Previous studies also have designed vivaldi array antenna at 28 GHz which provides a fix beam directional radiation pattern with narrow beam that requires real phase setting. However, there has been no research using vivaldi antenna with butler matrix, whereas it has some advantages such as wide bandwidth, high gain, high directivity, etc. This paper proposed 4x4 butler matrix integrated with vivaldi antenna by using phase shift of 45 . The design is developed on a single layer of Rogers RT5880 with dielectric constant 2.2 and thickness 0.254 mm. Best results of simulation were picked for overall system at 28 GHz, and the results of antenna as follows: the return loss was below -10 dB, the realized antennas gain was 10.2 dB with unidirectional radiation pattern and bandwidth antenna of 6 GHz that covers from 25 GHz to 31 GHz. The butler matrix average phase di erent between output port are -44.106°, 137.38°, -137.66°, 43.95° with phase err°r °f 0.894°, 2.38°, 2.66°, 1.06°. Antenna array that has been given di erent phase by butler matrix is able to shift radiation pattern on the input port successively with range of beam that can be achieved equal to 185o.

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