A dual CP slot antenna using a modified Wilkinson power divider configuration

Tseng, Wen-Jen; Chung, Shyh-Jong

doi:10.1109/75.668732

Cited by 12 publications

(1 citation statement)

References 3 publications

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“…Slot antenna using multi-feeds techniques can also generate CP [4]. Crossed dipole antenna is also a W. Li, S. Gao, Q. Luo and M. Sobhy are with the University of Kent, Canterbury CT2 7NT, U.K. (e-mail: wl83@kent.ac.uk; s.gao@kent.ac.uk).…”

Section: Introductionmentioning

confidence: 99%

Polarization-Reconfigurable Circularly Polarized Planar Antenna Using Switchable Polarizer

Gao

Cai

et al. 2017

IEEE Trans. Antennas Propagat.

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Abstract-A novel polarization reconfigurable planar lowprofile antenna is presented. The antenna consists of an electronically reconfigurable polarizer and a slot antenna. The polarizer is loaded by PIN diodes and by changing the states of the PIN diodes, the linearly polarized (LP) wave generated by the slot antenna can be converted to either right-hand circularly polarized (RHCP) or left-hand circularly polarized (LHCP) wave. The polarizer contains 16 unit cells, which are arranged as a 4×4 array. Each of the unit cells has two layers and is printed on two sides of the substrate. The presented antenna radiates RHCP waves when the PIN diodes of top side are ON while it radiates LHCP waves when the PIN diodes of bottom side are ON. An analysis of the antenna is provided by using equivalent circuits. To verify the design concept, one prototype at 2.5 GHz band is designed and fabricated. Good agreement between the measurement and simulation results is obtained. The measured results show that the antenna achieves a gain better than 8.5 dBic in both RHCP and LHCP with 70% aperture efficiency. It is also shown that the presented design can be easily extended to the design of large-scale arrays without increasing the complexity of the DC bias circuit. The advantages of the proposed design are simple planar structure, low profile, flexibility in designs, high isolation between DC bias circuit and RF signals, high power handling, high gain and low cost. The proposed design can also be applied to the design of antennas at other frequency bands.

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Section: Introductionmentioning

confidence: 99%

Polarization-Reconfigurable Circularly Polarized Planar Antenna Using Switchable Polarizer

Gao

Cai

et al. 2017

IEEE Trans. Antennas Propagat.

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Monopole slot antenna design for WLAN MIMO application

Chen

Lin

Lee

et al. 2012

Micro & Optical Tech Letters

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A monopole slot antenna with compact size designed at WLAN band (2.4–2.484 GHz) is proposed for multiple‐input multiple‐output application. By the concept of electromagnetic shield, the antenna module is formed by an open‐ended monopole slot surrounded by another open‐ended monopole slot on the ground plane. The two identical folded antenna modules located on the both side of the ground plane are separated by an isolated element for increasing isolation more than 17.8 dB within the operating band. To increase antenna's bandwidth, the two open‐ended monopole slot antennas with different lengths are printed to obtain two resonant modes, which are close at around 2.4 GHz. In addition, the proposed antenna occupies a small area of 10.5 × 20 mm2 and can be easily fabricated on an FR4 substrate that is a commonly used circuit board. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1103–1107, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26740

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Dual frequency and dual circular polarization slot antenna for BeiDou navigation satellite system applications

Wang

Yang

2014

Micro & Optical Tech Letters

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A new design of a dual frequency and dual circular polarization slot ring antenna for BeiDou Navigation Satellite System (BDS) applications is presented in this article. The dual frequency is achieved by two slot rings and the dual circular polarization is obtained by asymmetry slots adjacent to the rings. An antenna used for BDS applications with optimized parameters is designed, fabricated, and measured. Measured results show that the proposed antenna has good circular polarization for both right‐hand circular polarization and left‐hand circular polarization. The −10 dB return loss relative bandwidths for the lower and higher bands are about 4.4 and 12.0 %, respectively. The 3 dB axial ratio bandwidths are both about 5% with respect to the center frequencies of 1615.68 and 2491.75 MHz, respectively. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:2222–2225, 2014

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A dual CP slot antenna using a modified Wilkinson power divider configuration

Cited by 12 publications

References 3 publications

Polarization-Reconfigurable Circularly Polarized Planar Antenna Using Switchable Polarizer

Polarization-Reconfigurable Circularly Polarized Planar Antenna Using Switchable Polarizer

Monopole slot antenna design for WLAN MIMO application

Dual frequency and dual circular polarization slot antenna for BeiDou navigation satellite system applications

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