Low-Sidelobe-Level Series-Fed Microstrip Antenna Array of Unequal Interelement Spacing

Yin, Jiexi; Wu, Qi; Yu, Chen; Wang, Haiming; Wang, Hong

doi:10.1109/lawp.2017.2666427

Cited by 83 publications

(46 citation statements)

References 11 publications

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“…Several designs have recently been made to suppress the sidelobe level (SLL) in the printed antenna arrays [10][11][12][13][14][15][16][17][18]. A new aperture is proposed in [10] microstrip antenna array.…”

Section: Introductionmentioning

confidence: 99%

“…A 6.5% wideband is obtained, but the SLL and the acquired gain remain poor at −20 dB and 14.2 dBi, respectively. Lower SLLs are dealt with and obtained in [13,14]. The optimized distribution coefficients through the differential evolution algorithm have been used to achieve a wideband and a lower SLL in the slot antenna with a series-fed network in [13].…”

Section: Introductionmentioning

confidence: 99%

“…Lower SLLs are dealt with and obtained in [13,14]. The optimized distribution coefficients through the differential evolution algorithm have been used to achieve a wideband and a lower SLL in the slot antenna with a series-fed network in [13]. The antenna has 10 elements arranged in a series feeding system.…”

Section: Introductionmentioning

confidence: 99%

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SFCFOS Uniform and Chebyshev Amplitude Distribution Linear Array Antenna for K-Band Applications

Kothapudi

2019

J Electromagn Eng Sci

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In this study, a compact series-fed center-fed open-stub (SFCFOS) linear array antenna for K-band applications is presented. The antenna is composed of a single-line 10-element linear array. A symmetrical Chebyshev amplitude distribution (CAD) is used to obtain a low sidelobe characteristic against a uniform amplitude distribution (UAD). The amplitude is controlled by varying the width of the microstrip patch elements, and open-ended stubs are arranged next to the last antenna element to use the energy of the radiating signal more effectively. We insert a series-fed stub between two patches and obtain a low mutual coupling for a 4.28-mm center-to-center spacing (0.7λ at 21 GHz). A prototype of the antenna is fabricated and tested. The overall size of the uniform linear array is 7.04 × 1.05 × 0.0563 λg 3 and that of the Chebyshev linear array is 9.92 × 1.48 × 0.0793 λ g 3 . The UAD array yields a |S11| < -10 dB bandwidth of 1. 33% (20.912-21.192 GHz) and 1. 45% (20.89-21.196 GHz) for the CAD. The uniform array design gives a −23 dB return loss, and the Chebyshev array achieves a −30.68 dB return loss at the center frequency with gains of 15.3 dBi and 17 dBi, respectively. The simulated and measured results are in good agreement. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. ⓒ

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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SFCFOS Uniform and Chebyshev Amplitude Distribution Linear Array Antenna for K-Band Applications

Kothapudi

2019

J Electromagn Eng Sci

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“…In addition to exhibiting low profile and light weight like microstrip antennas with canonical geometry, they are also compact longitudinally and present low cross-polarization level in H-plane [1]. These characteristics make the microstrip magnetic dipoles good candidates for use in printed Yagi antennas and aperiodic linear arrays [2], since such radiators often require both a closer distance between some of their radiating elements and low cross-polarization in both principal planes. In particular, printed Yagi antennas composed of microstrip magnetic dipoles have been extensively discussed in the literature over the last few years [3]- [8] similarly to the design presentation of aperiodic linear arrays of microstrip magnetic dipoles in [9].…”

mentioning

confidence: 99%

“…In addition, a and b are dimensioned to have the equivalent cavity operating with one quarter-sine variation in x-axis and one half-sine variation in y-axis. The coaxial probe is, in turn, positioned on the patch midline, i.e., yf = 0; consequently, even-order terms of the sums in (1), (2), and (4) vanish and the aforementioned sine variations are excited.…”

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confidence: 99%

Physics-Based Design of Microstrip Magnetic Dipoles Using Cavity Model

Ferreira

Bianchi

Paula

2020

J. Microw. Optoelectron. Electromagn. Appl.

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Wideband linear microstrip array antenna with high efficiency and low side lobe level

Shirkolaei

2020

Int J RF Microw Comput Aided Eng

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In this letter, the design and fabrication of the linear microstrip array antenna by series fed are presented. The array antenna consists of 16 reflector slotstrip-foam-inverted patch (RSSFIP) antennas. The gain and efficiency of the linear array antenna is 16.6 dBi and 61% at 10 GHz, respectively. The antenna has a bandwidth (BW) of 45% from 8.1 to 12.8 GHz (S 11 < −10 dB) and side lobe level (SLL) of −25.6 dB across the BW of 19.2% from 9.4 to 10.4 GHz. These are achieved by using a microstrip series fed with defected ground structure (DGS) to feed the patch array antenna. Good agreement is achieved between measurement and simulation results.

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Low-Sidelobe-Level Series-Fed Microstrip Antenna Array of Unequal Interelement Spacing

Cited by 83 publications

References 11 publications

SFCFOS Uniform and Chebyshev Amplitude Distribution Linear Array Antenna for K-Band Applications

SFCFOS Uniform and Chebyshev Amplitude Distribution Linear Array Antenna for K-Band Applications

Physics-Based Design of Microstrip Magnetic Dipoles Using Cavity Model

Wideband linear microstrip array antenna with high efficiency and low side lobe level

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