A compact quad‐band circular cavity backed substrate integrated waveguide antenna for millimeter wave applications

Tewari, Nidhi; Joshi, Neetu; Srivastava, Shweta

doi:10.1002/mop.33766

Cited by 5 publications

(2 citation statements)

References 24 publications

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“…Therefore, the microstrip line type is not suitable in the high‐frequency millimeter wave band. The substrate integrated waveguide (SIW) 4–17 characteristics can meet millimeter wave and application requirements and combine the advantages of planar transmission lines and lower losses to provide higher power capacity and wider bandwidth 18,19 …”

Section: Introductionmentioning

confidence: 99%

A planar broadband substrate‐integrated waveguide 1 × 2 array antenna for the Ka‐band wireless communication

Chung,

Lin,

Meiy

2024

Micro & Optical Tech Letters

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This article proposes a Ka‐band substrate integrated waveguide (SIW) quasi‐Yagi array antenna with the advantages of thinness, compactness, wide bandwidth, and higher gain. Analyzing the microstrip‐to‐SIW transition structure to confirm that the designed structure provides the best performance, the optimum reflectance coefficient bandwidth can be obtained. With the optimized rectangular etched slot structure at the antenna end, the impedance matching can be tuned to improve the bandwidth. The designed array antenna is fabricated and measured for verification. The substrate is based on Al2O3 ceramic and the antenna size is 23.3 mm 13 mm 0.5 mm. The measurement results indicate that the antenna achieves an impedance bandwidth of 13.59% below −10dB, with an average gain of approximately 7 dBi and a peak gain of 7.4 dBi in 28.1–32.2 GHz. Therefore, the 1*2 antenna proposed in this paper has the advantages of compact and planar structure, easy fabrication, and easy integration into RF circuits, which is very suitable for Ka‐Band applications.

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Section: Introductionmentioning

confidence: 99%

A planar broadband substrate‐integrated waveguide 1 × 2 array antenna for the Ka‐band wireless communication

Chung,

Lin,

Meiy

2024

Micro & Optical Tech Letters

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“…6 Substrate integrated waveguide (SIW) cavity-backed antennas are known for high gain, compact design, and minimum losses at high frequencies. [7][8][9][10][11] A two-element H-plane horn SIW MIMO is designed at 3.8 GHz with an isolation of 20 dB and a high gain of 7.3 dBi. 12 These designs bear a tradeoff between isolation structures, size, and gain of the antenna at high frequency.…”

Section: Introductionmentioning

confidence: 99%

A miniaturized aperture‐coupled 4 × 4 MIMO array SIW antenna at K band

Tewari,

Joshi,

Srivastava

2023

Micro & Optical Tech Letters

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A planar miniaturized rectangular substrate integrated waveguide (SIW) cavity resonator with an array of patches is presented, which enhances the overall gain of antenna at the K band. The aperture‐coupled feeding is provided from SIW rectangular cavity resonator to reduce radiation losses as in microstrip feeding at a higher frequency. The resonating fields from the cavity excite an array of patches on the substrate. This is further replicated uniformly to design a 4 × 4 element multiple input multiple output (MIMO) antenna. The overall antenna dimension is 2λ × 3.1λ × 0.07λ, where λ is the operating wavelength. The compact structure configuration provides a high peak gain of 13.98 dBi resonating at 19.97 GHz in a broadside direction. An isolation of −17.53 dB is achieved by inserting metal pins. The envelope correlation coefficient of 0.0001 and total active reflection coefficient of −10 dB show characteristics of a high‐performing MIMO antenna. The antenna structure is simulated using HFSS ver. 2022, measured using Anritsu Vector Network Analyzer and Anechoic Chamber, the simulated and measured results are in good concurrence. The antenna is suitable for satellite communication, short‐range wireless applications in IoT, and radar.

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Design and Analysis of Sierpinski Fractal Antennas for Millimeter‐Wave 5G and Ground‐Based Radio Navigation Applications

Raj,

Mandal

2024

Trans Emerging Tel Tech

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The paper describes compact fractal antennae combined with ground defected structures (DGS) and substrate integrated waveguide (SIW) techniques for enhancing resonate and multiband behavior concerning bandwidth, gain, and radiation in the desired mm‐wave region. Based on the proposed antennae, multiple good notches over wide bands depict a good radiation pattern. The antennae's ultra wide bandwidths (UWB) are 16, 16, and 11.4 GHz concerning resonant frequencies 26.34, 30.35, 34.5, 36.65 GHz; 25.8, 32.2, 35.3 GHz; 30.22, 37.68 GHz, of concerning antennae ant 1 (FA1), 4 (FA2), and 6 (FA3), respectively. The proposed antenna (FA3) with the SIW technique has a peak gain of 5.9 dBi and a peak front‐to‐back ratio of 20 dB, respectively. The proposed antennas are targeted to cover the practical contribution aspect, including advanced 5G bands support (24–40 GHz), broadband spectrum, frequency agility, low 3 dB beamwidth, interference reduction, and medical application suitability, respectively. The proposed antennae also cover the desired mm wave 5G region with different resonating notches over ultra‐wide bandwidth, such as n257, n258, n259, n260, and n261, and ground‐based radio navigation applications. Results are validated with vector network analyzer, spectrum analyzer, and power sensor in the presence of absorber, respectively.

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A compact quad‐band circular cavity backed substrate integrated waveguide antenna for millimeter wave applications

Cited by 5 publications

References 24 publications

A planar broadband substrate‐integrated waveguide 1 × 2 array antenna for the Ka‐band wireless communication

A planar broadband substrate‐integrated waveguide 1 × 2 array antenna for the Ka‐band wireless communication

A miniaturized aperture‐coupled 4 × 4 MIMO array SIW antenna at K band

Design and Analysis of Sierpinski Fractal Antennas for Millimeter‐Wave 5G and Ground‐Based Radio Navigation Applications

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