Circularly-Polarized Reconfigurable Microstrip Antenna

Lai, Chien-Pai; Han, Tuan‐Yung; Chen, T.-R.

doi:10.1163/156939309787604373

Cited by 21 publications

(11 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The compact three-port branching OMT [17] composed by two H-plane rectangular waveguides coupled with a common circular waveguide uses two bottle-neck-like irises to match the structure and realize the isolation, whose return loss < −10 dB had a bandwidth < 12%, and isolation < −35 dB with a bandwidth > 10%. Other kind of circular polarizers such as microstrip polarizer [18][19][20][21][22][23][24] also have the disadvantage of narrow bandwidth and low efficiency due to losses of conductor, dielectric and surface wave.…”

Section: Introductionmentioning

confidence: 99%

Theory and Experiment of a Compact Waveguide Dual Circular Polarizer

Chang¹,

Church²,

Tantawi³

et al. 2012

PIER

View full text Add to dashboard Cite

Abstract-A new compact and wide-band waveguide dual circular polarizer at Ka-band is presented and tested in this paper. This compact structure is composed of a three-port polarizing diplexer and a circular polarizer realized by a simple pair of large grooves. The polarizing diplexer includes two rectangular waveguides with a perpendicular H-plane junction, one circular waveguide coupled in Eplane. A cylindrical step and two pins are used to match this structure. For a LHCP or RHCP wave in the circular port, only one specific rectangular port outputs power and the other one is isolated. The accurate analysis and design of the circular polarizer are conducted by using full-wave electromagnetic simulation tools. The optimized dual circular polarizer has the advantage of compact size with a volume smaller than 1.5λ 3 , broad bandwidth, uncomplicated structure, and is especially suitable for use at high frequencies such as Ka-band and above. The prototype of the polarizer has been manufactured and test, the experimental results are basically consistent with the theories.

show abstract

Section: Introductionmentioning

confidence: 99%

Theory and Experiment of a Compact Waveguide Dual Circular Polarizer

Chang¹,

Church²,

Tantawi³

et al. 2012

PIER

View full text Add to dashboard Cite

show abstract

“…In order to reduce the loss caused by the misalignment between the signal and the receiving antenna and allow more flexible orientation of the transmitter and receiver antennas, the circularly polarized microstrip antennas [1] with small size, light weight and low profile win more and more applications in wireless communications. However, some traditional proximity coupled CP microstrip antennas [2] have more complex geometry, larger size or higher loss at the feeding network compared to the newly reported antennas.…”

Section: Introductionmentioning

confidence: 99%

A Novel Compact Printed Antenna With Circularly Polarized Characteristic

Li¹,

Jiao²,

Huang³

2012

PIER Letters

View full text Add to dashboard Cite

Abstract-A new design of a circularly polarized single-layer antenna which has a compact structure of 10 mm × 20 mm × 1 mm is presented. The proposed antenna only consists of a feedline and a rectangular ground plane both printed on the same metallic layer. To compact the antenna size and overcome the high impedance problem, the circular polarization (CP) operation can be attained by locating the feedline at the left of the ground plane. Parameters such as substrate length and patch length are investigated and design results from parametric simulations are presented.

show abstract

“…To simultaneously support several satellite systems whose operating bands are closely spaced, large 3-dB axial-ratio bandwidths (ARBWs) are required for the antennas to be devised. Many popular circularly polarized (CP) patch antennas [3][4][5][6][7] and loop antennas [8,9] have narrower CP bandwidths of less than 20%. Known not only for their compactness and low-profile features but also for their easily attained large CP bandwidths using simple design technologies and constructions, printed slot antennas have received much attention in recent years [10][11][12][13][14][15][16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Design of Broadband Circularly Polarized Square Slot Antenna With a Compact Size

Sze¹,

Pan²

2011

PIER

View full text Add to dashboard Cite

Abstract-This paper proposes a newly designed compact coplanarwaveguide-fed wideband circularly polarized (CP) printed square slot antenna (PSSA), in the square slot of which are a halberd-shaped feeding signal line and a square ring patch. By placing a specially designed metal reflector behind the bidirectional CP PSSA, one can obtain unidirectional CP patterns with a associated 3-dB axial-ratio bandwidth (ARBW) almost the same as that of the bidirectional antenna. The bidirectional L-and S -band PSSAs designed on FR4 substrates have 3-dB ARBWs as large as 25.3% and 29.1%, respectively. For the L-band antennas, the unidirectional design yields a 3-dB ARBW of 25.7% and a gain of about 3 dB higher than that of the bidirectional counterpart. In all these 3-dB axialratio bands, impedance matching with VSWR ≤ 2 is also achieved. Most importantly, the design concepts, procedures, and rules for the proposed antenna are presented in detail.

show abstract

Circularly-Polarized Reconfigurable Microstrip Antenna

Cited by 21 publications

References 11 publications

Theory and Experiment of a Compact Waveguide Dual Circular Polarizer

Theory and Experiment of a Compact Waveguide Dual Circular Polarizer

A Novel Compact Printed Antenna With Circularly Polarized Characteristic

Design of Broadband Circularly Polarized Square Slot Antenna With a Compact Size

Contact Info

Product

Resources

About