A Printed Unidirectional Antenna With Improved Upper Band-Edge Selectivity Using a Parasitic Loop

Wu, Jheng-Yu; Zhao, Zhiqin; Nie, Zaiping; Liu, Qing

doi:10.1109/tap.2015.2392112

Cited by 103 publications

(49 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With the development of the fifth‐generation (5G) mobile and wireless communication technologies, antennas play an important role in modern wireless communication systems. As an important component of radio frequency (RF) front end, filtering antennas have attracted more and more attention in recent years …”

Section: Introductionmentioning

confidence: 99%

“…[], three shorting pins and a U‐slot are used in the design to generate radiation nulls and improve the roll‐off rate at the band‐edge. Satisfactory filtering performance is achieved by inserting slots and using parasitic loop …”

Section: Introductionmentioning

confidence: 99%

“…As an important component of radio frequency (RF) front end, filtering antennas have attracted more and more attention in recent years. [1][2][3][4][5][6][7][8][9][10][11][12][13] Recently, some methods of designing filtering antennas are employed. The relatively simple method is to integrate extra filtering circuits into antenna.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A novel differential filtering patch antenna with high selectivity

Wang

Ran

Hu³

et al. 2019

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

A novel differential filtering antenna with high selectivity is proposed. The antenna is mainly composed of three different‐size patches, a slot, a pair of differential feeding lines, and a line resonator. An air gap is adopted to improve the impedance bandwidth and the filtering performance. The line resonator helps to generate high common‐mode (CM) rejection. Owing to the parasitic concave and convex patches, the filtering performance and the bandwidth of the antenna are enhanced. The parasitic concave patch affects the lower band‐edge selectivity while the parasitic convex patch influences the upper band‐edge selectivity. In addition, the frequencies of two radiation nulls can be controlled independently to achieve two high sharp roll‐off rates by adjusting the lengths of the parasitic patches. Considerable impedance matching bandwidth is achieved through an aperture coupling. Finally, a prototype of the differential filtering antenna is fabricated and tested. The measured results are in good agreement with the simulated results, showing an impedance bandwidth of 9.9% and an average realized gain of 7.5 dBi. Besides, two filter zero transmissions located at 3.40 and 3.84 GHz produced two radiation nulls.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A novel differential filtering patch antenna with high selectivity

Wang

Ran

Hu³

et al. 2019

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

show abstract

“…The filter and antenna are cascaded directly, and the better impedance matching can be achieved by fine tuning the width and length of the feed line . Second, the filtering effect of an antenna also can be achieved by adding parasitic elements or slots to certain positions of the antenna . In addition, the antenna works not only as a radiator but also as a resonator of the filter .…”

Section: Introductionmentioning

confidence: 99%

Compact low‐temperature co‐fired ceramic filtering antenna array with high selectivity exploiting substrate integrated waveguide for 5G

Zhang

Jia

Zhang

et al. 2019

Micro & Optical Tech Letters

View full text Add to dashboard Cite

In this study, a compact filtering 2 × 2 array antenna with high selectivity utilizing substrate integrated waveguide (SIW) is presented. The proposed antenna structure is mainly composed of coplanar waveguide feeding structures, SIW filtering cavities, and four radiation patches by low‐temperature co‐fired ceramic technology. The designed antenna not only achieves the advantages of high selectivity but also realizes a miniaturized volume of 12 × 12 × 1.18 mm3. The simulated and measured results show that the filtering antenna achieves a center frequency of 28 GHz and has a 10.7% fractional bandwidth with a 10.8 dB antenna gain.

show abstract

“…This issue becomes more serious in wideband designs because they involve more resonators. To solve the problem, a new fusion-design concept of filtering antenna has been proposed [13,14]. Different to the above synthesis approach of filter, the fusion-design is mainly focused on antenna, and filtering function is realized by introducing parasitic elements into the antenna radiator or feeding circuit.…”

Section: Introductionmentioning

confidence: 99%

A Compact Filtering Dielectric Resonator Antenna With Wide Bandwidth and High Gain

Pan

Zhang

et al. 2016

IEEE Trans. Antennas Propagat.

140

View full text Add to dashboard Cite

A rectangular filtering dielectric resonator antenna (FDRA) with low profile, wide bandwidth and high gain is first investigated in this paper. It is fed by a microstrip-coupled slot from bottom, with open stub of the microstrip feed-line elaborately designed to provide two radiation nulls at band-edges for filtering function. A separation is introduced in the slot to provide good suppression level in lower stopband, while two parasitic strips are parallelly added to the microstrip feed-line to offer good suppression in upper stopband, and consequently, a compact FDRA with quasi-elliptic bandpass response is obtained without involving specific filtering circuits. Based on the design, a modified DRA fed by a pair of separated slots is proposed to further enhance the gain by 4 dB. A prototype operating at 5 GHz has been fabricated and measured for demonstration. The reflection coefficient, radiation pattern and antenna gain are studied, and reasonable agreement between measured and simulated results is observed. The prototype has a 10-dB impedance bandwidth of 20.3%, an average gain of 9.05 dBi within passband, and an out-of-band suppression level of more than 25 dB within wide stopband.Index Terms-Filtering antenna, dielectric resonator antenna (DRA), wideband antenna.

show abstract

A Printed Unidirectional Antenna With Improved Upper Band-Edge Selectivity Using a Parasitic Loop

Cited by 103 publications

References 12 publications

A novel differential filtering patch antenna with high selectivity

A novel differential filtering patch antenna with high selectivity

Compact low‐temperature co‐fired ceramic filtering antenna array with high selectivity exploiting substrate integrated waveguide for 5G

A Compact Filtering Dielectric Resonator Antenna With Wide Bandwidth and High Gain

Contact Info

Product

Resources

About