Dual-Band Dual-Sense Circularly-Polarized CPW-Fed Slot Antenna With Two Spiral Slots Loaded

Chen, Canhui; Yung, E.K.N.

doi:10.1109/tap.2009.2019990

Cited by 142 publications

(114 citation statements)

References 9 publications

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“…Dual-band dual-sense CP antennas have become a popular study in this research area during the last few years. Several dual-frequency designs for antenna structures have been proposed in [1][2][3][4][5][6][7][8][9][10][11], including slot antenna, notched printed monopole antenna, multifunction hybrid antenna, dual-feed antenna arrays.…”

Section: Introductionmentioning

confidence: 99%

A Single-Feed Dual-Band Dual-Sense Circularly Polarized Microstrip Antenna

Li¹,

Zhang²,

Zhang³

et al. 2014

PIER C

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Abstract-A single-feed dual-band dual-sense circularly polarized (CP) microstrip antenna is proposed. The antenna consists of a circular radiating patch with a ring slot, two substrates with an air layer sandwiched between them and a capacitive coupling feed. The two resonant frequencies are controlled by the size of the circular radiating patch and the ring slot. By introducing the perturbation, the fundamental resonant mode splits into two orthogonal degenerate modes, and the CP radiation pattern is obtained. Capacitive disk coupling feed is also used in the design to enhance the bandwidth. The key parameters of the design are investigated to show how to obtain dual-band and dual-sense CP. The proposed antenna prototype is fabricated and measured, and experimental results show that good CP radiation performances are obtained at both resonant frequencies.

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Section: Introductionmentioning

confidence: 99%

A Single-Feed Dual-Band Dual-Sense Circularly Polarized Microstrip Antenna

Li¹,

Zhang²,

Zhang³

et al. 2014

PIER C

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“…Microstrip CP antenna arrays have become an excellent choice due to their simple structures, low profile, ease of fabrication and good performance [3][4][5][6][7][8][9][10][11][12][13]. Most designs have narrow impedance and axial ratio (AR) bandwidth [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…In the past few years, the designs of coplanar waveguide (CPW)-fed square slot antennas are getting more attention owing to their wide bandwidth [4][5][6][7][8][9][10][11][12][13]. Various effective techniques used to expand the CP bandwidth of slot antennas have been introduced as follows: inserting inverted-L or T-shaped grounded strips in the slot [7][8][9][10]13], embedding a lighting-shaped feed line [9], implanting a spiral slot in ground plane [11], and employing arc-shaped grounded metallic strips [12].…”

Section: Introductionmentioning

confidence: 99%

“…Various effective techniques used to expand the CP bandwidth of slot antennas have been introduced as follows: inserting inverted-L or T-shaped grounded strips in the slot [7][8][9][10]13], embedding a lighting-shaped feed line [9], implanting a spiral slot in ground plane [11], and employing arc-shaped grounded metallic strips [12]. And the sequential rotation technique has been generally used to improve the bandwidth performance of CP arrays [1,5,[13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Broadband Circularly Polarized Slot Antenna Array With Fan-Shaped Feed Line and L-Shaped Grounded Strips

Yan²,

Zhang³

et al. 2014

PIER Letters

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Abstract-A broadband circularly polarized (CP) slot antenna array fed by a coplanar waveguide (CPW) is proposed. A fan-shaped feed line and three L-shaped grounded strips are embedded in the square slot antenna element to enlarge the bandwidth. Simulated results show that the antenna element can obtain a wide impedance bandwidth with −10 dB reflection coefficient covering 1.7-6.3 GHz (about 115% relative bandwidth) and 3 dB axial ratio (AR) bandwidth covering 2.6-5.2 GHz (about 66%). Using four elements with sequential phase feed, the measured impedance bandwidth and axial ratio bandwidth of the antenna array can be enhanced to 105% (1.65-5.35 GHz) and 71.3% (2.3-4.85 GHz), respectively. Good radiation characteristics with the peak gain of 10.8 dBic over the operating band can be obtained.

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“…The antennas proposed in [14,17] have investigated upon embedding two inverted-L grounded strips around two opposite corners of the slot, each of which using different feedline shapes. Embedding two spiral slots is also presented in [15], in which current circulation in the spiral slots are employed to achieve the CP operation. Utilizing a shorted square-ring slot is another way of creating CP antennas which is presented in [16].…”

Section: Introductionmentioning

confidence: 99%

A New Triple Band Circularly Polarized Square Slot Antenna Design With Crooked T and F-Shape Strips for Wireless Applications

Rezaeieh¹,

Kartal²

2011

PIER

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Abstract-A new design for circularly polarized square slot antenna (CPSSA) is presented. The circular polarization operation in the proposed single-layer antenna is created through two equal sized crooked T-shape and an F-shape strips located on the patch. Compared to most of the previously reported CPSSA structures, the impedance bandwidth and the axial ratio bandwidth of the antenna are increased and also the size of the antenna becomes smaller. The presented CPSSA design has the compact dimensions of 40 × 40 × 0.8 mm 3 , total impedance matching bandwidth of 8.04 GHz and exhibiting a 28.03% (4.6-6.1 GHz) 3 dB axial ratio bandwidth. A prototype of the antenna is fabricated and tested, and a great agreement with simulated results is obtained.

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Dual-Band Dual-Sense Circularly-Polarized CPW-Fed Slot Antenna With Two Spiral Slots Loaded

Cited by 142 publications

References 9 publications

A Single-Feed Dual-Band Dual-Sense Circularly Polarized Microstrip Antenna

A Single-Feed Dual-Band Dual-Sense Circularly Polarized Microstrip Antenna

Broadband Circularly Polarized Slot Antenna Array With Fan-Shaped Feed Line and L-Shaped Grounded Strips

A New Triple Band Circularly Polarized Square Slot Antenna Design With Crooked T and F-Shape Strips for Wireless Applications

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