A broadband circular microstrip antenna with two open-ring slots

Jan, Jen-Yea

doi:10.1002/(sici)1098-2760(19991120)23:4<205::aid-mop4>3.0.co;2-l

Cited by 8 publications

(6 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, some low profile microstrip antennas with intact ground plane have been reported in [7][8][9]. For example, by embedding an offset open-ring slot [8] or two open-ring slots [9] in a circular patch, two resonant modes with similar radiation patterns are excited.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Omnidirectional Triple-Band Circular Patch Antenna Based on Open Elliptical-Ring Slots and the Shorting Vias

Chen¹,

Yu²,

Gong³

2015

PIER

View full text Add to dashboard Cite

Abstract-A circular patch antenna based on open elliptical-ring slots and shorting vias with conical radiation patterns is proposed. Fed by the coaxial probe at the center of the circular patch, the proposed antenna is excited at three resonant modes, simultaneously. The first resonant mode (monopolar patch mode) is achieved by six shorting vias, each of which is placed at the center of the open elliptical-ring slot. By embedding six open elliptical-ring slots on the patch, the other two resonant modes of the open elliptical-ring slot resonator, TE 110 and TE 210 , can also be excited. Due to symmetrical slots on the patch, these two modes can produce conical patterns, and their frequency ratio can also be tuned by adjusting the size of the slots. The proposed antenna is fabricated and measured. The measured results show that the proposed antenna can provide three operating bands which meet the required bandwidth specifications of 2.4/5.8 GHz WLAN and 3.5/5.5 GHz WiMAX standards. Detailed design considerations of the proposed antenna are described, and both the simulated and measured results are given. Moreover, the effects of the vital parameters on the performance of the proposed antenna are analyzed in this paper.

show abstract

Section: Introductionmentioning

confidence: 99%

“…For example, by embedding an offset open-ring slot [8] or two open-ring slots [9] in a circular patch, two resonant modes with similar radiation patterns are excited. However, these antennas radiate broadside patterns and cannot be widely used in the wireless communications.…”

Section: Introductionmentioning

confidence: 99%

An Omnidirectional Triple-Band Circular Patch Antenna Based on Open Elliptical-Ring Slots and the Shorting Vias

Chen¹,

Yu²,

Gong³

2015

PIER

View full text Add to dashboard Cite

show abstract

“…Although in early implementations they suffered from narrow bandwidth, several approaches have been proposed to improve the bandwidth [1,2]. The latest approaches utilized in antennas with excellent bandwidths are listed as follows: the multi-layer structure [3,4], slotted antennas [5][6][7][8][9][10][11], E-shaped patch antennas [12][13][14], etc. Most methods [15,16] seem to get broad bandwidth by changing the shape of the patch or the slots.…”

Section: Introductionmentioning

confidence: 99%

Broadband Microstrip Antennas Using Coplanar Feed-Line

Wang¹,

Yang²,

Lei³

et al. 2011

PIER Letters

View full text Add to dashboard Cite

Abstract-This paper proposes two novel broadband microstrip antennas using coplanar feed-line. By feeding the patch with a suitable shape of the coplanar line in the slot of the patch, the broadband character is achieved. Compared with the antenna fed by a U-shaped feed-line, the antenna with L-shaped feed-line not only has wider bandwidth but also achieves the circular polarization character. The measured bandwidths of 25% and 34% are achieved, and both of the antennas have good radiation characteristics in the work band.

show abstract

“…A broadband rectangular microstrip antenna with a pair of U-shaped slots placed close to non-radiating patch edges was designed [5], but its bandwidth drops to 4.9%. Some antennas with a pair of other shaped slots placed close to non-radiating patch edges were introduced [6,7], however their bandwidths still don't exceed 7%. In order to overcome these shortcomings, this paper proposes a novel method of designing the broadband microstrip antennas with a pair of slots placed close to non-radiating patch edges, which could achieve the aim of wide bandwidth in a small size.…”

Section: Introductionmentioning

confidence: 99%

Analysis and design of broadband microstrip patch antenna with a pair of double cross-shaped slots

Wang

Lin

et al. 2010

2010 International Conference on Microwave and Millimeter Wave Technology

View full text Add to dashboard Cite

A novel method of designing broadband microstrip antenna is proposed in this paper. By embedding a pair of Cross-shaped slots placed close to the non-radiating edges of a microstrip patch and adding an air layer between the substrate and the ground, the broadband character can be achieved. What's more, the formulas for calculating the two resonant frequencies have been experimentally deduced. Employing the method and the formulas, a antenna with a pair of double cross-shaped is designed. The measured bandwidth of 15.2% is achieved with small sizes, and the good radiation characteristic for operating frequencies within the impedance bandwidth is also observed.I.

show abstract

A broadband circular microstrip antenna with two open-ring slots

Cited by 8 publications

References 9 publications

An Omnidirectional Triple-Band Circular Patch Antenna Based on Open Elliptical-Ring Slots and the Shorting Vias

An Omnidirectional Triple-Band Circular Patch Antenna Based on Open Elliptical-Ring Slots and the Shorting Vias

Broadband Microstrip Antennas Using Coplanar Feed-Line

Analysis and design of broadband microstrip patch antenna with a pair of double cross-shaped slots

Contact Info

Product

Resources

About