Dual-Band Directional Slot Antenna for Wi-Fi Application

Xiao, Yang; Qi, Yihong; Li, Fuhai; Fan, Jun; Yu, Wei; Lu, Liang

doi:10.1109/tap.2018.2840843

Cited by 18 publications

(14 citation statements)

References 20 publications

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“…The original antenna is difficult to achieve series feeding because of its inherent geometry. As shown in Figure 1, point A can only be connected to a coaxial cable feed due to the antenna that needs to feed the slot 14‐20 . This coaxial feeding method is not suitable to feed the two elements in series, not to mention the difficulty in achieving the same phase between the elements.…”

Section: Antenna Designmentioning

confidence: 99%

“…To address the issues of narrow bandwidth and having to use multiple elements in the millimeter wave antenna arrays, in this paper, we propose to use a class of wide bandwidth and high‐efficiency antennas based on the slot‐loop structure 14‐21 . The antenna was denoted as a wideband high‐efficiency electromagnetic radiation structure (WHEMS) antenna.…”

Section: Introductionmentioning

confidence: 99%

“…The antenna has high gain, wide frequency band, stable radiation characteristics, and does not cause beam splitting because of its wide frequency band. It has already been used in practical applications 16‐21 . It is an ideal choice for antenna elements.…”

Section: Introductionmentioning

confidence: 99%

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A 2‐element K‐band series‐fed directional antenna array for millimeter wave radar applications

Xia

Cai

et al. 2021

Int J RF Microw Comput Aided Eng

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In this paper, a K‐band series‐fed directional antenna array based on a wide bandwidth, high‐efficiency electromagnetic radiation structure is proposed for millimeter wave radar applications. Only two fundamental elements are needed to meet design specifications. By cutting off one side of the original antennas and using the grounded coplanar waveguide (CPWG) and microstrip hybrid feeding method, a series‐fed structure is innovatively developed to make the designed array simple in structure and efficient in space utilization. Simultaneously, the feed structure of the CPWG and the through‐hole vias around the antenna are proposed in combination to form a semi‐closed shielded cavity structure. It can better constrain the electric field, suppress radiation from the transmission line, alleviate the antenna radiation pattern distortion and reduce the transmission line loss. The similar beamwidth is mainly achieved in both the E‐ and H ‐planes by placing the two elements vertically perpendicular to the H‐plane. The measured relative bandwidth of the antenna array is 24%. Within the designed bandwidth (22‐28 GHz), the measured |S11| is lower than −10 dB, and the gain is basically above 10 dBi. The measured E‐ and H‐plane beamwidths are close to each other with a difference of less than 10°for each frequency, while the beamwidth value varies between 32°and 51°in the entire frequency band of 22 to 28 GHz. The simulated results are in good agreement with the measured ones.

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Section: Antenna Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A 2‐element K‐band series‐fed directional antenna array for millimeter wave radar applications

Xia

Cai

et al. 2021

Int J RF Microw Comput Aided Eng

Self Cite

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“…WHEMS antennas have already been proven as good candidates for efficient wide bandwidth and multiband antennas with compact sizes. [11][12][13][14][15][16] The two elements are placed vertically with an angle of 90 . Thus, they provide good combined omnidirectional radiation patterns, and have a good isolation between them.…”

Section: Introductionmentioning

confidence: 99%

“…Using a wide‐bandwidth high‐efficiency electromagnetic structure (WHEMS) as the elements is key to the superior performance of the proposed antenna. WHEMS antennas have already been proven as good candidates for efficient wide bandwidth and multiband antennas with compact sizes 11‐16 . The two elements are placed vertically with an angle of 90°.…”

Section: Introductionmentioning

confidence: 99%

Design of a MIMO antenna for high throughput WLAN applications

Luo

Xiao

Weng

et al. 2021

Int J RF Microw Comput Aided Eng

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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.

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