Harmonic Suppression and Size Reduction of a Low-Profile CP Patch Antenna by Using Nondegenerate Modes

Yun, Yu; Liu, Ying; Wu, Zhe; Lennerstad, Håkan

doi:10.1109/lawp.2021.3135300

Cited by 9 publications

(10 citation statements)

References 27 publications

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“…As for the measured results, a gain of 3 dBi is obtained for the proposed DCPW-fed filtering TCM. Regarding stopband efficiency, it is observed that an average improvement of 37.8% is accomplished using the proposed design. A maximum suppression level of −41 dB is achieved by the proposed design, and an average of −18 dB is maintained throughout the stopband frequency range. In comparison to the literature, 2.4% (Zebao et al , 2014), 10.97% (Li et al , 2018), 58.5% (Biswas et al , 2013), 43.9% (Liu et al , 2021b), 68.8% (Hou et al , 2021), 65.8% (Yun et al , 2021), 8.5% (Ali et al , 2006), 59.8% (Yun et al , 2020) and 60.9% (Pan et al , 2018) of improvement is observed for −41 dB suppression. Besides, Zebao et al (2014) show −40 dB suppression, and Ali et al (2006) show a peak suppression of −50 dB, which is 18% higher than the proposed filtering antenna. Concerning stopband performance, the proposed design shows a stopband efficiency of +12.2 GHz.…”

Section: Resultsmentioning

confidence: 69%

“…However, it is 40% greater on comparing to (Yun et al , 2021). The bandwidth attainment shows an increment of 79.8% (Li et al , 2018), 74.7% (Zhi-Li et al , 2012), 42.2% (Hou et al , 2021), 81.9% (Yun et al , 2021), 51.6% (Nie and Tu, 2021), 93.7% (Ahmad, 2022), 55.9% (Yun et al , 2020) and 59.4% (Pan et al , 2018) is observed. Using an FR4 substrate, a gain of 5.1 dBi (reference antenna) and 3.3 dBi (filtering antenna) is achieved from the simulated results. As for the measured results, a gain of 3 dBi is obtained for the proposed DCPW-fed filtering TCM. Regarding stopband efficiency, it is observed that an average improvement of 37.8% is accomplished using the proposed design.…”

Section: Resultsmentioning

confidence: 86%

“…The bandwidth attainment shows an increment of 79.8% (Li et al , 2018), 74.7% (Zhi-Li et al , 2012), 42.2% (Hou et al , 2021), 81.9% (Yun et al , 2021), 51.6% (Nie and Tu, 2021), 93.7% (Ahmad, 2022), 55.9% (Yun et al , 2020) and 59.4% (Pan et al , 2018) is observed.…”

Section: Resultsmentioning

confidence: 91%

“…The proposed filtering antenna has the following features: The size of the proposed antenna is reduced by about 75% (Biswas, et al, 2013), 80.8% (Liu et al, 2021b), 83.3% (Hou et al, 2021), 52.5% (Nie and Tu, 2021), 64.3% (Liu et al, 2021a), 8.6% (Mishra et al, 2011), 58.3% (Ahmad, 2022, 62.3% (Yun et al, 2020) and 64.3% (Pan et al, 2018). However, it is 40% greater on comparing to (Yun et al, 2021). (2006) show a peak suppression of À50 dB, which is 18% higher than the proposed filtering antenna.…”

Section: Resultsmentioning

confidence: 99%

“…In Hou (2022, 2021), the coupling is brought by adding slots and CSRR, which makes the antenna bulkier and more complex. Similarly, many other related techniques for perfect matching are found in the literature (Yun et al, 2021;Nie andTu, 2021 andLiu et al, 2021a). In the case of the UWB (Ultra-Wideband) monopole antenna attainment of larger bandwidth with a miniaturized structure is a challenging one.…”

Section: Introductionmentioning

confidence: 99%

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A novel filtering monopole antenna for 5G communications

A.¹,

Alsath²

2023

COMPEL

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Purpose This study aims to design a compact filtering monopole antenna for 5G communication. The design is most suited for various applications within the frequency range of 2.2–3.8 GHz. It offers enhanced bandwidth and reasonable gain with wide-stopband performance. Design/methodology/approach A low-pass filter (LPF) of complementary split ring resonator (CSRR) with short-circuited stub lines is integrated with a compact defected coplanar waveguide fed truncated circular monopole ultrawideband (UWB) antenna. The reference UWB antenna etched on an FR4 substrate was coupled to the designed LPF to transform the UWB antenna into a wideband antenna. The effect of coupling is analyzed based on the real and imaginary responses of the terminal impedance (ZT) curve. Three short-circuited stub lines of asymmetric lengths are added to the CSRR LPF to suppress harmonics, thereby enhancing the stopband performance and impedance matching between the elements. The proposed filtering antenna is fabricated using a photolithography process, and the corresponding results are measured using a network analyzer (N9951A). The radiation parameters of the proposed filtering monopole antenna are tested in the anechoic chamber. The simulated/measured results are compared and are found in agreement with each other. Findings The proposed design suppresses 6.5f0 harmonics, resulting in wide stopband performance and increased gain selectivity at the transition edge. A peak suppression of −41 dB and an average suppression of −18 dB were attained throughout the stopband. An operating fractional bandwidth of 54.5%/143% with a peak gain of 3 dBi/5 dBi was obtained. The proposed filtering antenna supports 5G applications such as WiMAX, WLAN, n7, n38 IMT-E, n30 WCS, n40 TDD, n41 TDD, n48 TDD, n78 TDD and n90 TDD. Originality/value The proposed design is novel and compact and has a wide application in 5G communication. With the filter, the antenna operates in wideband, and without the filter, it operates in UWB. Besides, it offers enhanced stopband performance with high gain selectivity at the transition edge. Comparatively, a 50% improvement in bandwidth, 52% improvement in size reduction and 33% improvement in harmonic suppression are attained.

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Section: Resultsmentioning

confidence: 69%

Section: Resultsmentioning

confidence: 86%

Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A novel filtering monopole antenna for 5G communications

A.¹,

Alsath²

2023

COMPEL

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Optimized design of wide band polarization diversified compact microstrip transponder antenna for satellite communication

Ghosh¹,

Chakraborty

Chakraborty³

2023

Micro & Optical Tech Letters

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A major limitation of microstrip antenna is its narrow impedance bandwidth (1%-5%) which makes it unsuitable for the operation over C band, used for various satellite communications, Wi-Fi devices, some surveillance, and weather radar systems. Furthermore, increasing bandwidth (BW) can cause a reduction in radiation efficiency and antenna gain making it unsuitable for some particular applications. Nonplanar and defected ground structures may provide enhanced BW but it also creates distorted radiation pattern, unwanted loss of power, and mechanical mounting hazard. Polarization diversity also gives flexibility in use for various applications. A unique compact dual band and Ultra-Wide Band (viz., 4.29-5.32 and 6.04-8.77 GHz) and polarization diversified (viz., circular and dual polarization) perturbed square microstrip patch antenna has been proposed here overcome the above shortcomings. Innovative corner parasitic loading and shorting via implementation ensures the fulfillment of the above features with improved 24.45% and 33.75% BW.

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Feed Design Synthesis Using Shorting Pins Illustrated by Characteristic Mode Analysis to Achieve Dual Resonances

Brown,

Khan

2024

2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI)

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Harmonic Suppression and Size Reduction of a Low-Profile CP Patch Antenna by Using Nondegenerate Modes

Cited by 9 publications

References 27 publications

A novel filtering monopole antenna for 5G communications

A novel filtering monopole antenna for 5G communications

Optimized design of wide band polarization diversified compact microstrip transponder antenna for satellite communication

Feed Design Synthesis Using Shorting Pins Illustrated by Characteristic Mode Analysis to Achieve Dual Resonances

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