Single‐layer partially reflective surface for an orthogonally‐polarised dual‐band high‐gain resonant cavity antenna

2013 ◽  
Vol 7 (8) ◽  
pp. 656-662 ◽  
Author(s):  
Hamid Moghadas ◽  
Mojgan Daneshmand ◽  
Pedram Mousavi
Keyword(s):  
Resonant Cavity ◽  
Single Layer ◽  
High Gain ◽  
Dual Band ◽  
Reflective Surface

scholarly journals Miniature Dual-Band Substrate Integrated Waveguide Slotted Antenna Array for Millimeter-Wave 5G Applications

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Fei-Peng Lai ◽  
Lu-Wu Chang ◽  
Yen-Sheng Chen
Keyword(s):  
Antenna Array ◽  
Millimeter Wave ◽  
Communication Systems ◽  
Single Layer ◽  
High Gain ◽  
Dual Band ◽  
Substrate Integrated Waveguide ◽  
Suitable Candidate ◽  
Fifth Generation ◽  
Half Power

A compact substrate integrated waveguide (SIW) antenna array that operates at 28 GHz and 38 GHz is proposed for fifth generation (5G) applications. The proposed array consists of four SIW cavities fabricated on one single layer of substrate. Each cavity implements a rhombic slot and a triangular-split-ring slot, resonating on TE101 and TE102 modes at 28 GHz and 38 GHz, respectively. In comparison with dual-band SIW antennas in the literature, the proposed configuration depicts a miniature footprint (28.7 × 30.8 mm2) without stacking substrates. To excite the four cavities with equal power, a broadband power divider that supports the propagation of TE10 mode is designed. Accordingly, the impedance bandwidths are 26.6–28.3 GHz and 36.8–38.9 GHz. The measured realized peak gain over the lower and higher bands is 9.3–10.9 dBi and 8.7–12.1 dBi, respectively. The measured half-power beam widths (HPBWs) at 28 GHz and 38 GHz are 20.7° and 15.0°, respectively. Considering these characteristics, including dual bands, high gain, narrow beam widths, miniaturization, and single layer, the proposed antenna array is a suitable candidate for millimeter-wave 5G communication systems with the flexibility in switching operating frequency bands against channel quality variations.

A Dual-Band High-Gain Resonant Cavity Antenna With Orthogonal Polarizations

2011 ◽  
Vol 10 ◽  
pp. 1220-1223 ◽  
Author(s):  
Hamid Moghadas ◽  
Mojgan Daneshmand ◽  
Pedram Mousavi
Keyword(s):  
Resonant Cavity ◽  
High Gain ◽  
Dual Band

scholarly journals A single-layer metallo-dielectric superstructure for enhancing the performances of EBG cavity antenna

2021 ◽  
Vol 72 (1) ◽  
pp. 53-60
Author(s):  
Abdelhalim Chaabane ◽  
Hussein Attia ◽  
Farid Djahli ◽  
Tayeb A. Denidni
Keyword(s):  
Frequency Band ◽  
Single Layer ◽  
High Gain ◽  
Slot Antenna ◽  
Antenna Gain ◽  
Asymmetric Unit ◽  
Reflective Surface ◽  
Reflection Phase ◽  
High Reflectivity ◽  
Unit Cells

Abstract A novel single-layer metallo-dielectric superstructure is proposed in this paper. It is constructed by two asymmetric unit- cells optimally arranged on the same layer to construct a partially reflective surface to be placed over a multilayer microstrip slot antenna named feed antenna for enhancing its performances. The radiation is expected to be maximum at the center of the formed layer. Thus, to maintain a high-gain performance, the unit-cells placed at the center are designed to provide a quasi-optimal reflection phase with high reflectivity at the frequency band of interest. A prototype of the proposed antenna operating at 10 GHz with overall size of 2.133λ0 ×2.133λ0 ×0.56λ0 is successfully designed and fabricated. The calculated and measured antenna gain results indicate that the proposed antenna exhibits a wider radiation bandwidth performance of about 41.15% and 36.15%, respectively.

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