Micromachined SU-8-Based Terahertz 8×8 Slotted Waveguide Antenna Array

Design of an Edge Slotted Waveguide Antenna Array Based on T-Shaped Cross-Section Waveguide

International Journal of Antennas and Propagation ◽

10.1155/2017/7385357 ◽

2017 ◽

Vol 2017 ◽

pp. 1-8 ◽

Cited By ~ 2

Author(s):

Teng Li ◽

Wenbin Dou

Keyword(s):

Surface Wave ◽

Antenna Array ◽

Cross Section ◽

Mutual Coupling ◽

Dominant Mode ◽

Waveguide Structure ◽

Center Frequency ◽

Sidelobe Level ◽

Slotted Waveguide ◽

Shaped Cross Section

An edge slotted waveguide antenna array based on T-shaped cross-section radiating waveguide is proposed. The T-shaped waveguide is analyzed and designed to operate in dominant mode around the center frequency, which has a lower profile compared with the rectangular one. The radiating slots are etched and rotated alternatively on the broadened top plate without cutting into the adjacent walls. The metal fences are inserted between slots to reduce the mutual coupling and surface wave. Therefore, the sidelobe level in E-plane is well suppressed. A 2 × 8 antenna array working at Ka-band is designed and fabricated. The measured results agree well with simulations which demonstrate this novel waveguide structure.

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Design and implementation of a planar Ka band antenna array based on slotted waveguide structures

The 8th European Conference on Antennas and Propagation (EuCAP 2014) ◽

10.1109/eucap.2014.6902208 ◽

2014 ◽

Author(s):

Zunnurain Ahmad ◽

Hans Adel ◽

Mario Schuhler

Keyword(s):

Antenna Array ◽

Ka Band ◽

Design And Implementation ◽

Slotted Waveguide

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Low sidelobe slotted waveguide antenna array of X-band radar system

High Power Laser and Particle Beams ◽

10.3788/hplpb20152705.53202 ◽

2015 ◽

Vol 27 (5) ◽

pp. 53202

Author(s):

薄勇 Bo Yong ◽

赵青 Zhao Qing ◽

宣银良 Xuan Yinliang ◽

刘述章 Liu Shuzhang

Keyword(s):

Antenna Array ◽

Radar System ◽

Low Sidelobe ◽

X Band ◽

Slotted Waveguide

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Wideband Omnidirectional Slotted-Waveguide Antenna Array Based on Trapezoidal Slots

International Journal of Antennas and Propagation ◽

10.1155/2019/3792980 ◽

2019 ◽

Vol 2019 ◽

pp. 1-8 ◽

Cited By ~ 1

Author(s):

Hugo Rodrigues Dias Filgueiras ◽

James R. Kelly ◽

Pei Xiao ◽

I. F. da Costa ◽

Arismar Cerqueira Sodré

Keyword(s):

Antenna Array ◽

Antenna Arrays ◽

Longitudinal Axis ◽

Fractional Bandwidth ◽

Slot Length ◽

Novel Approach ◽

Gain Variation ◽

Operating Bandwidth ◽

Slotted Waveguide ◽

24 Ghz

This manuscript presents a novel approach for designing wideband omnidirectional slotted-waveguide antenna arrays, which is based on trapezoidal-shaped slots with two different electrical lengths, as well as a twisted distribution of slot groups along the array longitudinal axis. The trapezoidal section is formed by gradually increasing the slot length between the waveguide interior and exterior surfaces. In this way, a smoother impedance transition between waveguide and air is provided in order to enhance the array operating bandwidth. In addition, we propose a twisting technique, responsible to improve the omnidirectional pattern, by means of reducing the gain ripple in the azimuth plane. Experimental results demonstrate 1.09 GHz bandwidth centered at 24 GHz (4.54% fractional bandwidth), gain up to 14.71 dBi over the operating bandwidth, and only 2.7 dB gain variation in the azimuth plane. The proposed antenna array and its enabling techniques present themselves as promising solutions for mm-wave application, including 5G enhanced mobile broadband (eMBB) communications.

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