A Compact Filtering Antenna With Flat Gain Response Within the Passband

Chen, Xinwei; Zhao, Fengxian; Yan, Lianshan; Zhang, Wenmei

doi:10.1109/lawp.2013.2271972

Cited by 142 publications

(68 citation statements)

References 6 publications

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“…The function of the antenna is receiving and transmitting signal, and the bandpass filter is used to filter spurious signals. In general, these two components are designed separately [1][2][3], but many scholars start to study the co-design method and other methods to realize filtering antennas [4][5][6][7][8][9][10][11][12][13][14][15]. Filtering antennas not only improve the performance of communications systems, but also minimize the total size.…”

Section: Introductionmentioning

confidence: 99%

“…Two microstrip square open-loop resonators can be used in the design of a filtering antenna [6], and shorting pins can also be used in the design of a filtering antenna [7]. In [8], a compact two-pole filtering antenna consisting of a fan-shaped patch antenna and defected ground structure is presented. The first step is the design of a two-pole Butterworth bandpass filter.…”

Section: Introductionmentioning

confidence: 99%

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Compact Filtering Antenna Based on Dumbbell-Shaped Resonator

Zhang¹

2017

PIER Letters

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Abstract-A filtering antenna based on a dumbbell-shaped resonator is proposed, fabricated and measured. A Γ-shaped antenna and the proposed dumbbell-shaped resonator are used and integrated to be a filtering antenna. The Γ-shaped antenna which acts as a radiator is excited by a coupled line. Measured results show that the filtering antenna achieves an impedance bandwidth of 6.7% at a reflection coefficient |S 11 | < −10 dB and has a gain of 1.35 dBi. Moreover, a radiation zero occurs at 3.1 GHz. Compared with the characteristics of fundamental Γ-shaped antenna, the design of the dumbbell resonator has little impact on antenna's radiation patterns. In addition, to explain the mechanism of filtering antenna, the analysis of surface current distribution on patch is given. The size of filtering antenna is 0.33λ 0 × 0.17λ 0 (λ 0 is the free-space wavelength at 2.45 GHz). Compared to other recent works, a simpler structure and more compact size are the key features. Owing to the operating bandwidth and the characteristic of filtering, the proposed antenna can be used in modern wireless communications systems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compact Filtering Antenna Based on Dumbbell-Shaped Resonator

Zhang¹

2017

PIER Letters

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“…However, multi-band antennas may suffer from higher order resonance which will reduce the signal to noise figure. One solution is to integrate the antenna with filtering stage [1][2][3][4], and another approach is to integrate the filter within the antenna structure [5][6][7]. The design of filtering antenna has a tradeoff between the design complexity for arbitrary frequencies and the overall antenna size.…”

Section: Introductionmentioning

confidence: 99%

Integrated Filtering Antenna Based on D-CRLH Transmission Lines for Ultra-Compact Wireless Applications

Abdalla¹,

Fouad²

2016

PIER C

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Abstract-This paper presents an ultra-compact filtering integrated antenna for GPS (1.57 GHz) and LTE (2.65 GHz) applications. The antenna comprises integration between dual composite right/lefthanded antenna and bandstop filter in one platform. The whole integrated antenna size is only 30 × 28.5 mm 2 . Compared to conventional antenna with the same dimensions, the proposed antenna is only 6.5% at GPS band and 16.5% at LTE band. The deign procedures of individual antennas, bandstop filter and the filtering integrated antennas are explained in details. The full wave simulations supporting the design procedures and experimental measurements for all introduced components are introduced with good agreement. Finally, as a consequence of the proposed antenna ultra small size and its filtering capability, the antenna is a good candidate for implanted antenna applications.

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“…Several efforts have been made to integrate filters with antennas [1][2][3][4][5][6][7][8][9]. The direct method is to design the antenna and filter separately and then integrate together by adding a matching circuit.…”

Section: Introductionmentioning

confidence: 99%

“…Nevertheless, this design method includes so many structure parameters and so much optimization process, which are complicated and time consuming. Recently, filtering antennas, designed following the synthesis process of bandpass filter (BPF), have been presented in [7][8][9]. In those designs, the last resonator and the load impedance of BPF were substituted by the patch antenna.…”

Section: Introductionmentioning

confidence: 99%

A Novel Filtering Antenna Using Dual-Mode Resonator

Yao¹,

Chen²

2016

PIER Letters

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Abstract-In this paper, a filtering antenna using a dual-mode resonator is presented. The rectangular patch performs not only as a radiator, but also as the last resonator of the bandpass filter. The dualmode resonator works together with the patch antenna to form a third order bandpass filter with Chebyshev responses. The filtering antenna exhibits good performance, such as skirt selectivity, flat gain within the passband, and high out-of-band suppression.

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A Compact Filtering Antenna With Flat Gain Response Within the Passband

Cited by 142 publications

References 6 publications

Compact Filtering Antenna Based on Dumbbell-Shaped Resonator

Compact Filtering Antenna Based on Dumbbell-Shaped Resonator

Integrated Filtering Antenna Based on D-CRLH Transmission Lines for Ultra-Compact Wireless Applications

A Novel Filtering Antenna Using Dual-Mode Resonator

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