A Low-Profile, High-Gain, and Full-Band SubArray of Cavity-Backed Slot Antenna

Amjadi, S. Mohammad; Sarabandi, Kamal

doi:10.1109/tap.2017.2700046

Cited by 21 publications

(11 citation statements)

References 20 publications

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“…Our proposed antenna performs fairly well compared to SGH antenna, of course, with larger aperture, but smaller axial length. The array antenna developed in Reference for X‐band performs well under most performance metrics. However, our proposed antenna has about 2 dB higher gain than .…”

Section: Resultsmentioning

confidence: 99%

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Additively manufactured trapezoidal grooves for wideband and high gain Ku‐band antenna

Asci

Yeğin

2019

Int J RF Microw Comput Aided Eng

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Grooves around aperture antennas are known to be instrumental in obtaining directive antenna patterns. The shapes of the grooves are often restricted to rectangular or triangular due to manufacturing difficulties in traditional metal machining, and because of this reason, the effect of groove shape on antenna performance is often overlooked. The aim of this study is to analyze different groove shapes with the help of additive manufacturing. Waveguide slot fed, dual cavity aperture antenna with grooves is designed and the effect of groove shapes on antenna performance is studied at Ku band. Two antennas with and without grooves are built using 3D printing technology. Measured antenna performance reveals 5 GHz bandwidth covering 10 to 15 GHz for Ku-band satellite communications and part of the X-band applications. Proposed antenna achieves 13.25 dBi peak gain at 14 GHz and the gain is better than 11.25 dBi over the entire Ku-band uplink and downlink frequency bands. K E Y W O R D S

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Section: Resultsmentioning

confidence: 99%

“…The array antenna developed in Reference for X‐band performs well under most performance metrics. However, our proposed antenna has about 2 dB higher gain than . The aperture efficiencies in Table mostly correspond to the best single value within the band, thus they do not provide a good comparison metric.…”

Section: Resultsmentioning

confidence: 99%

Additively manufactured trapezoidal grooves for wideband and high gain Ku‐band antenna

Asci

Yeğin

2019

Int J RF Microw Comput Aided Eng

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“…In recent years, the slotted-cavity antennas [17,[21][22][23][24] have been studied, and we take advantage of power distribution of highorder modes to realise the reduction in size [25,26]. In [24], the authors first systematically classify HPM antennas and propose a compact HPM feed antenna with shaped beam using the asymmetric high-order mode to make huge reduction in volume compared with other common HPM feed antennas, and obtain higher power capacity and better radiation performance.…”

Section: Introductionmentioning

confidence: 99%

Compact coaxial slotted‐cavity feed antenna with shaped‐beam pattern for high‐power microwave using high‐order modes and polarisation cancellation techniques

Yang

et al. 2020

IET Microwaves, Antennas & Propagation

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The coaxial slotted‐cavity antenna is an easily‐manufactured, novel high‐power microwave antenna developed specifically for its compact and shaped‐beam characteristics. It can directly cascade with the high‐power microwave source, and radiate linear‐polarisation electromagnetic wave without extra power dividers and mode converters, which obtains a low profile. In this study, a double‐layer coaxial cavity operating in two high‐order modes is introduced to eliminate the high‐order interference modes caused by structural discontinuities, and three shaped beams on the compact aperture can be achieved by the polarisation cancellation technique. Unique proprieties of three shaped beams, namely the peak of gain enhancement beam, the ripple of Gaussian beam and the null depth of conical beam are investigated, all of which can be controlled by the rotation angle of three phase adjusted slot pairs. This study demonstrates the design process of such antenna, and verifies it against simulation and experimental results. The measured return‐loss of all three shaped beams are higher than 13 dB, while the corresponding radiation efficiencies are not lower than 98.9%. Furthermore, the estimated minimum power capacity of such antenna exceeds 1.26 GW at 9.375 GHz, making it a highly potential candidate in application towards high‐power microwave.

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“…In this research, the truncated corner method is used by cutting the upper and lower edges of the rectangular shape antenna, the selection of this method is because the initial dimension of the designed microstrip antenna is rectangular so that the use of truncated method is much easier and more effective in designing, the truncated corner method also reduces the dimensions of the antenna into smaller ones resulting in a more compact dimension. Beside that to increase the gain of the antenna can be done by using array method [9][10][11][12]. In a previous study [13][14][15] obtained a circular polarization using the truncated corner method.…”

Section: Introductionmentioning

confidence: 99%

Design Of Array and Circular Polarization Microstrip Antenna For LTE Communication

et al. 2018

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This paper proposes a high gain microstrip antenna with circular polarization for LTE applications at a working frequency of 2300 MHz. Gain of antenna is optimized by using an array method with 4 elements arranged in plannar using feed line of 50 Ohm, 100 Ohm and 70.7 Ohm. The proposed antenna designed using FR-4 substrate with (Ɛr) = 4.3, substrate thickness (h) of 1.6 mm and loss tangent (tan δ) of 0.0265. Gain of antenna can be optimized by increasing the number of elements in the array of the antenna. Circular polarization can be obtained by cutting the edge of a rectangular patch antenna with an angle of 45 0 . From the simulation results obtained reflection coefficient value of -20.02 dB and VSWR of 1.22 at the working frequency of 2300 MHz. The gain of proposed microstrip antenna is 10.56 dB with an impedance bandwidth value of 714 MHz (1925( -2639. The proposed antenna obtained a circular polarization with axial ratio of 1.745 dB at working frequency of 2300 MHz. Array method with four elements increased the gain of antena until 45.07% compared to the single element antenna.

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A Low-Profile, High-Gain, and Full-Band SubArray of Cavity-Backed Slot Antenna

Cited by 21 publications

References 20 publications

Additively manufactured trapezoidal grooves for wideband and high gain Ku‐band antenna

Additively manufactured trapezoidal grooves for wideband and high gain Ku‐band antenna

Compact coaxial slotted‐cavity feed antenna with shaped‐beam pattern for high‐power microwave using high‐order modes and polarisation cancellation techniques

Design Of Array and Circular Polarization Microstrip Antenna For LTE Communication

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