A Filtering Dielectric Resonator Antenna With High Band-Edge Selectivity

Gao, Yang; Jiao, Yong‐Chang; Weng, Zibin; Zhang, Chi; Zhang, and Yi-Xuan

doi:10.2528/pierm19112703

Cited by 10 publications

(4 citation statements)

References 18 publications

(24 reference statements)

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“…Note that, the efficiency and gain of the synthetically designed FDRA may be degraded to some degree, due to insertion loss of the filter. The fusion design approach is also proposed, which focuses on antenna, and its filtering function is achieved by modifying the feeding network [8][9][10] or introducing parasitic elements. 11 In Reference 8, by using the well-designed open stub of the microstrip feedline, two radiation nulls are realized without extra filtering circuits, but both radiation nulls are related to the length of the open stub; in Reference 9, the similar methods are used to realize filtering function.…”

Section: Introductionmentioning

confidence: 99%

A novel single‐feed filtering dielectric resonator antenna using slotline‐loaded coupling structure

Wang

Zhang

Han

et al. 2022

Micro & Optical Tech Letters

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This paper proposes a novel single-feed filtering dielectric resonator antenna (FDRA) using fusion design method and the microstrip-slot coupled feeding structure. Two pairs of slotlines are elaborately designed and perpendicularly loaded on the coupling slot to provide two radiation nulls at the edges of the passband. Therefore, a compact DRA with a quasi-elliptic function bandpass response is constructed without extra filter circuits. Furthermore, two radiation nulls can be individually controlled through changing the length of the corresponding slotlines. For proving the effectiveness of the design, a prototype FDRA operation at 3.45 GHz is fabricated and measured. The measured results show that the peak realized gain is 5.84 dBi and the -10dB impedance bandwidth is 10.29% (3.29 -3.65 GHz). The proposed FDRA not only has good performance, but also has simple design.

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Section: Introductionmentioning

confidence: 99%

A novel single‐feed filtering dielectric resonator antenna using slotline‐loaded coupling structure

Wang

Zhang

Han

et al. 2022

Micro & Optical Tech Letters

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“…In [9], a compact FDRA with a quasielliptic bandpass response is obtained and is fed by a microstrip-coupled slot, and two parasitic strips are parallelly added on two sides of the microstrip feedline to achieve better out-of-band suppression. In [10], a thin metal strip and two open stubs are used to establish cross coupling to generate two radiation nulls at their passband edges, enabling a DRA with a bandpass filtering response without any filtering circuit. In [11], by introducing a double-ring loop structure into the cylindrical DRA, the internal fields of the dielectric resonator at a needed frequency can cancel out, and two radiation nulls located on two sides of the passband are generated to realize the filtering response.…”

Section: Introductionmentioning

confidence: 99%

A Filtering Dielectric Resonator Antenna Using CPW-Fed for Sub-6 GHZ Applications

Wang¹,

Wang²,

Zhang³

et al. 2022

PIER Letters

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A filtering dielectric resonator antenna (FDRA) using an inductive CPW (coplanar waveguide) feed structure is proposed. Simultaneously, a pair of slotline stubs are respectively loaded on the signal line and ground of the CPW feed structure, which is used to generate radiation nulls near the edges of the passband. Furthermore, the two radiation nulls can be controlled independently by adjusting the length of the loaded two pairs of slotline stubs. In addition, it is interesting that TE 111 mode is split due to the different loading effects of slotline stubs in feed network, thereby three resonances in the passband are formed. Finally, an FDRA with quasi-elliptic function response is realized without additional filtering circuit. The prototype of the FDRA operating at 3.53 GHz was fabricated and measured to verify the design validity. The measured results show that the impedance bandwidth is 13.6% (3.29-3.77 GHz); the gain is basically stable at 5.7 dBi within the passband; and the two radiation nulls are located at 3.05 GHz and 3.88 GHz, respectively.

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“…Various antennas have been developed to obtain excellent filtering performances, including Yagi Uda antennas [1], dielectric resonator antennas [2][3][4][5][6], microstrip patch antennas [7][8][9][10][11], and substrate integrated waveguide (SIW) antennas. Due to the virtues of low loss and high radiation efficiency, SIW has been widely applied to design excellent filtering antennas [12][13][14][15][16][17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

A Low-Profile Half-Mode Substrate Integrated Waveguide Filtering Antenna With High Frequency Selectivity

Wang¹,

Zhao²,

Li³

et al. 2021

PIER Letters

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A low-profile half-mode substrate integrated waveguide (HMSIW) filtering antenna with high frequency selectivity is proposed in this letter. The proposed antenna with a height of 0.014λ 0 (λ 0 is the free-space wavelength) consists of a slot-loaded HMSIW cavity, two parasitic patches, and five shorting pins. An upper-edge radiation null is generated by the interaction between the HMSIW cavity and parasitic patches. A rectangular slot etched on the HMSIW cavity is adopted to generate another null to improve the filtering performances at the upper stopband. Besides, the radiation in the lower stopband is suppressed by two nulls which emerge due to placing shorting pins under two parasitic patches. Thus, four radiation nulls can be obtained to enhance the frequency selectivity. The measured results illustrate that the proposed antenna provides an impedance bandwidth of 4.3% ranging from 2.74 to 2.86 GHz and a peak gain of 6.76 dBi during the operating frequency band. Moreover, four radiation nulls appear at 2.34, 2.56, 3, and 3.24 GHz in the lower and upper stopbands.

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A Filtering Dielectric Resonator Antenna With High Band-Edge Selectivity

Cited by 10 publications

References 18 publications

A novel single‐feed filtering dielectric resonator antenna using slotline‐loaded coupling structure

A novel single‐feed filtering dielectric resonator antenna using slotline‐loaded coupling structure

A Filtering Dielectric Resonator Antenna Using CPW-Fed for Sub-6 GHZ Applications

A Low-Profile Half-Mode Substrate Integrated Waveguide Filtering Antenna With High Frequency Selectivity

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