A new wide stopband and high gain quasi‐Yagi filtering antenna

Zheng, Licheng; Zhai, Huiqing; Wei, Zichun; Ma, Shengqian; Shi, Juan

doi:10.1002/mop.31529

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…Some methods for designing a filtering quasi-Yagi antenna were reported. One method is cascading the filtering structure before the quasi-Yagi antenna, where the filtering structures, such as the bandpass filtering structure [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ], the bandstop filtering structure [ 12 ], and the filtering balun [ 13 , 14 , 15 , 16 , 17 ], determine the filtering response. Nevertheless, the filtering structures increase the whole size, especially in the endfire direction, and additional loss is inevitable.…”

Section: Introductionmentioning

confidence: 99%

Designing a Compact Filtering Quasi-Yagi Antenna with Multiple Radiation Nulls Using Embedded Resistor-Loaded Arms

Zhai

Guo

et al. 2023

Micromachines

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In this paper, a compact quasi-Yagi antenna with embedded resistor-loaded arms is proposed to obtain a filtering response with four radiation nulls. The embedded resistor-loaded arms achieve two additional radiation nulls caused by reverse currents and absorb the unwanted out-of-band resonant points brought by themselves. The director close to the driver provides a resonant point and a radiation null caused by opposite currents between the driver and the director. Compared with other filtering quasi-Yagi antennas, the proposed one can achieve a filtering response with a compact size along the endfire direction. For demonstration, a balun-integrated prototype covering the 5G band N78 (3.3–3.8 GHz) is designed with the size along the endfire direction (without ground) of 0.13 λ0 (λ0 is the wavelength in the free space at center frequency), and the measured results show a 10 dB impedance-matching bandwidth of 22.9% (3.21–4.04 GHz), four radiation nulls, and a peak gain of 4.73 dBi.

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Section: Introductionmentioning

confidence: 99%

Designing a Compact Filtering Quasi-Yagi Antenna with Multiple Radiation Nulls Using Embedded Resistor-Loaded Arms

Zhai

Guo

et al. 2023

Micromachines

View full text Add to dashboard Cite

show abstract

“…On the other hand, the quasi‐Yagi antenna has been widely used in the point‐to‐point communication owing to the advantages, such as low profile, easy integration, and high gain. Yet, Yagi antennas generally have a narrow operating bandwidth that hardly meets the broadband applications 12‐14 . Therefore, most of the research on the quasi‐Yagi antenna has focused on bandwidth expansion.…”

Section: Introductionmentioning

confidence: 99%

A broadband filtering quasi‐YAGI antenna with wide stopband

Lee

Ding

2021

Micro & Optical Tech Letters

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This article presents a novel filtering quasi‐Yagi antenna with ultra‐wide passband and ultra‐wide stopband. By employing an antipodal connection between the dipole arms and the feedline, the profitable modes of the dipole can be excited and controlled to produce a wide operating band. Without increasing the antenna size, the elaborately arranged parasitic elements and the band‐stop element can realize the filter‐like response with sharp roll‐off rates and high out‐of‐band suppression levels. Measured results show that passband and stopband can be improved to 2.65–6.05 GHz (78.2%) and 6.3–13.3 GHz (up to 3.1 f0, f0 is the center frequency of the antenna), respectively. Radiations keep stable across the passband. The measured in‐band average gain is ∼ 4.4 dBi, whereas the out‐of‐band radiation suppression is more than 20.2 dB.

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“…erefore, a traditional quasi-Yagi antenna always has a large physical dimension for achieving a high gain at the S-band. For expanding the bandwidth and improving the gain of the Yagi antenna, different feed networks, baluns, exciters, and director structures design have been proposed [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A Compact Quasi-Yagi Antenna with High Gain by Employing the Bent Arms and Split-Ring Resonators

Zhou

Mei

2021

International Journal of Antennas and Propagation

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A compact quasi-Yagi antenna with bent arms and split-ring resonators (SRRs) is proposed. Compared with traditional quasi-Yagi antennas employing straight arms, the resonant frequency of the proposed antenna could be always consistent with its center frequency, and there is no obvious frequency shift under the process of its miniaturization. The SRRs are adopted in the proposed compact antenna for a high gain of 6.58 dBi. The reliability verification of the proposed antenna radiation characteristics is further experimentally proved with the prototype measurement. The proposed quasi-Yagi antenna has an adjustable compact structure and low frequency offset and could be used in the precise point-to-point wireless communication environment.

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A new wide stopband and high gain quasi‐Yagi filtering antenna

Cited by 4 publications

References 8 publications

Designing a Compact Filtering Quasi-Yagi Antenna with Multiple Radiation Nulls Using Embedded Resistor-Loaded Arms

Designing a Compact Filtering Quasi-Yagi Antenna with Multiple Radiation Nulls Using Embedded Resistor-Loaded Arms

A broadband filtering quasi‐YAGI antenna with wide stopband

A Compact Quasi-Yagi Antenna with High Gain by Employing the Bent Arms and Split-Ring Resonators

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