Design and validation of A 30 ghz 8 × 8 slot antenna array with ridge waveguide pins/holes layers
Hasan Raza, Slawomir Koziel, Stanislaw Szczepanski
TL;DR
This paper introduces a compact, high-performance 8x8 slot antenna array for 30 GHz applications with high gain and efficiency.
Contribution
The novel pin/hole-based design eliminates electrical contacts between layers, reducing fabrication complexity and cost.
Findings
The array achieves a 33% impedance matching bandwidth from 25 to 35 GHz.
It maintains a gain of over 23 dBi across the operating frequency range.
The design uses standard milling techniques for fabrication.
Abstract
This paper presents an 8 × 8-element slot antenna array optimized for 30 GHz band applications, achieving high gain, wide impedance bandwidth, and high efficiency. The array employs a pin/hole-based design, which enables a compact structure and reduces fabrication complexity and cost, as it eliminates the need for electrical contact between its three primary layers: the metal radiating slot plate, a sub-array cavity layer, and a ridge waveguide feed network layer. The corporate feed network is realized through an array of pins and guiding ridges integrated into a metal plate, effectively distributing power to the radiating elements. A double transition from ridge waveguide to rectangular waveguide, leading to a 2.92 mm coaxial connector, ensures efficient feeding. Each component, including the radiating elements, cavity layer, power dividers, and transitions, is designed and optimized…
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Taxonomy
TopicsMicrowave Engineering and Waveguides · Antenna Design and Analysis · Millimeter-Wave Propagation and Modeling