A tri‐band monopole filtering antenna using multimode resonators

Yao, Yue; Tu, Zhi‐Hong; Gan, Zhenghao

doi:10.1002/mop.30638

Cited by 10 publications

(11 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The performance including size, peak gain and frequency band of the presented filtering antenna in this paper together with several other published filtering antennas reported in the references are summarized in Table 1 (where λ g is the waveguide wavelength of these filtering antennas at the central frequency of the lowest operating frequency band). Compared with the antennas in [5,10,11], the proposed antenna is obviously compact. Besides, its higher band is controllable easily by adjusting the dimension of the T-shaped stub while leaving the lower band unaffected, which reduces the complexity of the design process.…”

Section: Design Of Compact Dual Band Filtering Antennamentioning

confidence: 99%

“…This situation is caused by the need of a quarter-wavelength coupled line which is treated as the admittance inverter. In [10], a multiband filter and monopole antenna are cascaded directly to realize a tri-band filtering antenna without a fully integrated process while its size is large. A compact dual-band filtering patch antenna using step impedance resonators with harmonic suppression and controllable bandwidth is reported in [11].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Compact Dual-Band Inverted-F Filtering Antenna Using Dual-Mode Resonators

Yang¹,

Yang²,

Sun³

et al. 2017

PIER M

View full text Add to dashboard Cite

Abstract-A compact dual-band inverted-F filtering antenna with good band-edge selectivity for modern wireless communication systems is presented in this paper. A novel dual-band filter based on open-loop dual-mode resonator loading a T-shaped stub and an inverted-F antenna (IFA) also with a T-shaped open stub are integrated together. The higher band is controllable easily by adjusting the dimension of the T-shaped stub, leaving the lower band unaffected. To minimize the dimension of the filtering antenna, the last stage of the filter is folded. A flat gain response is obtained with steep skirts at both band edges. Simulated and measured results show that the integration makes the proposed antenna operate at 2.4/3.7 GHz with compact size, good band-edge selectivity, and controllable higher band compared with the traditional IFA.

show abstract

Section: Design Of Compact Dual Band Filtering Antennamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compact Dual-Band Inverted-F Filtering Antenna Using Dual-Mode Resonators

Yang¹,

Yang²,

Sun³

et al. 2017

PIER M

View full text Add to dashboard Cite

show abstract

“…To solve this problem and realize the integration, a variety of antennas with filtering performance have been reported. For the integrated filtering antenna designs in [1][2][3][4][5][6][7], the radiator acts as the last resonator of the narrow-band filtering circuit, which complicates the antenna structure. Meanwhile, adding complex filtering circuits can result in extra insertion loss and degrade the gain.…”

Section: Introductionmentioning

confidence: 99%

Wideband Filtering Dumbbell-Shaped Slot Antenna With Improved Frequency Selectivity for Both Band-Edges

Nie

2020

IEEE Access

Self Cite

View full text Add to dashboard Cite

A novel wideband filtering dumbbell-shaped slot antenna with improved frequency selectivity for both band-edges is proposed in this paper. The filtering slot antenna is composed of a dumbbell-shaped slot, two parasitic patches, eight slot-stubs and a feeding line with a pair of step impedance resonator (SIR) stubs. An additional resonance is generated to increase the bandwidth and a gain null is produced at the upper band-edge to improve the frequency selectivity by loading parasitic patches in the dumbbell-shaped slot. Eight slot-stubs adjacent to the dumbbell-shaped slot are etched to enhance the impedance matching. In addition, the bandwidth is further broadened and two gain nulls are realized at both band-edges by adding a pair of SIR stubs. Moreover, the gain nulls can be adjusted individually by the length of parasitic patches or SIR stubs. As a result, the gain curve of the proposed filtering slot antenna has good flatness and the frequency selectivity for both band-edges is significantly improved. A prototype has been manufactured and measured to verify the validity of the design. The measured impedance bandwidth of |S11|<-10 dB is 62.5% (2.2 GHz-4.2 GHz). High suppression levels of 26 dB and 30 dB can be achieved in the lower and upper stopbands, respectively. INDEX TERMS Filtering slot antenna, wideband, gain nulls, frequency selectivity.

show abstract

“…In recent years, filtering antennas have achieved more concentration where in an antenna adds up to filtering performance and is reported in References . The filtering characteristics have been obtained mostly by etching or modifying the feed line, resulting in more spurious radiation.…”

Section: Introductionmentioning

confidence: 99%

“…Few multiband filtering antennas have been reported which used techniques such as connecting stubs to the feed line, placing parasitic element near the radiating element, using impedance or multimode resonators to achieve filtering performance. Furthermore, at higher frequencies, the filtering antennas suffer from the drawback of circuit complexity, resulting in greater insertion loss and larger size …”

Section: Introductionmentioning

confidence: 99%

Implementation of defected ground structure for microstrip filtenna design

Mishra

Lalitha

2019

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

A microstrip patch filtenna inspired by defected ground structure (DGS) is presented in this article. It uses modified split ring resonator and capacitance loaded strip as a radiating element. The presented structure is incorporated with a pair of double U-shaped DGS (DU-DGS) to obtain filtering characteristics. The width of DU-DGS plays a vital role in selecting attenuation poles of the filter as well as for the filtenna circuit. The separation distance between the DU-DGS also affects the resonant frequency of the structure. Both radiation and filtration can be performed through a single structure, otherwise known as filtenna. The physical size of the proposed filtenna in terms of guided wavelength is 2.465λ g × 1.160λ g × 0.116λ g at 10.8 GHz, and is comparatively less to others reported, so is considered as a superior feature. The presented filtenna possesses impedance bandwidth of 700 and 1800 MHz at 10.8 and 16.6 GHz, which covers standards of X-and Ku-band, respectively. So, this can be referred to as dual band filtenna. The radiation pattern shows omnidirectionality in both E and H planes at resonance. K E Y W O R D Sdefected ground structure, dual band, filtenna, omnidirectional, split ring resonator

show abstract

A tri‐band monopole filtering antenna using multimode resonators

Cited by 10 publications

References 11 publications

Compact Dual-Band Inverted-F Filtering Antenna Using Dual-Mode Resonators

Compact Dual-Band Inverted-F Filtering Antenna Using Dual-Mode Resonators

Wideband Filtering Dumbbell-Shaped Slot Antenna With Improved Frequency Selectivity for Both Band-Edges

Implementation of defected ground structure for microstrip filtenna design

Contact Info

Product

Resources

About