Closely Spaced Broadband MIMO Differential Filtering Slotline Antenna With CM Suppression

Deng, Hong‐Wei; Xu, Tao; Xue, Yifan; Liu, Fei; Sun, Lingling

doi:10.1109/lawp.2018.2879523

Cited by 24 publications

(23 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meanwhile, the CM signal should not be radiated or received by antenna [3]. Recently, the differential antenna with high CM rejection has become a new research hotspot [4][5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…In 2016, Chu and co-workers et al [5] proposed an ultra-wideband differential antenna with stepped slot in. Under the CM operation, a virtual magnetic wall is formed along the symmetric line, the differential antennas [6][7][8][9] do not work because the vertical electrical field is hardly introduced on the slotline resonator or radiator. Therefore, it can achieve good CM suppression characteristics.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Differential SIW slot antenna array with intrinsic common‐mode rejection

Deng

Xue

Sun

et al. 2020

IET Microwaves, Antennas & Propagation

Self Cite

View full text Add to dashboard Cite

In this study, the differential substrate integrated waveguide (SIW) slot antenna array is proposed with intrinsic common‐mode (CM) rejection. Through field analysis, it is found that the SIW is a natural differential transmission line which can only transmit differential signal due to the characteristics of hybrid electromagnetic boundary perfect electrical conductor and perfect magnetic conductor. Hence, it can also be seen as a natural balun with intrinsic CM suppression. Thus, a compact 1 × 4 differential SIW slot antenna array with high CM rejection can be designed using the differential microstrip transition structure which has little conversion between differential‐mode (DM) and CM. For the design of differential SIW passive device, the DM equivalent half circuit is a single‐ended SIW device with height halved. Further, the 4 × 4 differential SIW antenna array with high CM rejection can be designed with a T‐shaped differential SIW four‐way power divider. The 1 × 4 and 4 × 4 differential SIW antenna arrays are fabricated and good agreements between the simulated and measured results demonstrate the validity of proposed configurations.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Differential SIW slot antenna array with intrinsic common‐mode rejection

Deng

Xue

Sun

et al. 2020

IET Microwaves, Antennas & Propagation

Self Cite

View full text Add to dashboard Cite

show abstract

“…Differential antennas have the advantages of being easily integrated with other differential devices. Therefore, differential antennas are becoming increasingly popular . In the design of filtering antennas, the differential feed is adopted to make up for the deficiency of single feed and realize further miniaturization of RF front end, which is significant for the integration of modern wireless communication.…”

Section: Introductionmentioning

confidence: 99%

“…[]. However, these differential filtering patch antennas produced no radiation nulls. Radiation nulls are significant to the design of the filtering antenna, which can improve the out‐of‐band suppression of the filtering antenna.…”

Section: Introductionmentioning

confidence: 99%

“…In this article, a novel low‐profile differential filtering patch antenna without extra filtering circuits is presented and discussed. Compared to the previous differential filtering antennas, the two parasitic patches are introduced to enhance the impedance bandwidth of the proposed antenna, and produce two independently controlled radiation nulls. To the authors' knowledge, it is the first time that controlled radiation nulls are independently generated in the design of differential filtering antenna.…”

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

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

Design of a MIMO antenna for high throughput WLAN applications

Luo

Xiao

Weng

et al. 2021

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

In this paper, a novel multiple-input-multiple-output tri-band antenna with a featured embedded common mode (CM) choke is presented to prevent receiver desense and improve throughput for WLAN applications. The proposed antenna design consists of two wide-bandwidth high-efficiency electromagnetic structure elements with an Γ-shaped branch and an open-ended slot line in the element. The Γ-shaped branch is used to reduce the size of the antenna element. The open-ended slot line is a balun, which is used to reduce the CM current on the coaxial cable. The proposed antenna was simulated and measured, and the simulated results agree well with the measured ones. The results have also demonstrated that the proposed antenna is well suited for WLAN applications as it covers the three operating bands of 2.4G, 5.2G and 5.8G.

show abstract

Closely Spaced Broadband MIMO Differential Filtering Slotline Antenna With CM Suppression

Cited by 24 publications

References 11 publications

Differential SIW slot antenna array with intrinsic common‐mode rejection

Differential SIW slot antenna array with intrinsic common‐mode rejection

A novel differential filtering patch antenna with high selectivity

Design of a MIMO antenna for high throughput WLAN applications

Contact Info

Product

Resources

About