Polarization Reconfigurable U-Slot Patch Antenna

Qin, Pei-Yuan; Weily, Andrew R.; Guo, Y. Jay; Chen, Liang

doi:10.1109/tap.2010.2055808

Cited by 204 publications

(69 citation statements)

References 11 publications

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“…Therefore, antennas with switchable circular polarizations have been widely investigated. For example, a PIN diode controlled U-slot patch antenna was proposed in [6]. A piezoelectric transducer (PET) based antenna with similar functionality was designed in [7].…”

Section: Introductionmentioning

confidence: 99%

Wideband Loop Antenna With Electronically Switchable Circular Polarization

Zhang

Gao

Luo

et al. 2017

Antennas Wirel. Propag. Lett.

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Abstract-This paper presents a novel printed antenna which achieves wide bandwidth, high gain and reconfigurable circular polarizations. A loop antenna is printed on both sides of a dielectric substrate: a dual PIN diode loaded loop is printed on one side while a dual gap loaded smaller loop is etched on the other side. By controlling the on/off states of the PIN diodes, the polarization of the proposed antenna can be switched electronically to right-hand circular polarization (RHCP) or left-hand circular polarization (LHCP) over a wideband frequency range. A prototype is fabricated and measured to verify the performance of the antenna. The measured results indicate that the antenna can achieve an impedance bandwidth of over 30%, and a 3-dB axial ratio (AR) bandwidth of 12.7% and 14.9% for RHCP and LHCP, respectively. The measured gain is around 8 dBic for LHCP state and 7 dBic for RHCP state. Due to advantages of wide overlapped bandwidth, simple feeding structure and high gain, this antenna is promising for applications in dual-CP wireless communication systems.

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Section: Introductionmentioning

confidence: 99%

Wideband Loop Antenna With Electronically Switchable Circular Polarization

Zhang

Gao

Luo

et al. 2017

Antennas Wirel. Propag. Lett.

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show abstract

“…Additionally, advanced signal propagation characteristics of CP make it more resistant to signal degradation due to inclement weather conditions. Reduction of the multipath effect and also the need for precise polarization alignment between transmitting and receiving antennas are the other benefits of utilizing CP antenna [12][13][14][15][16]. Many studies have been done on the CP MPAs for enhancing their radiation performance.…”

Section: Introductionmentioning

confidence: 99%

A Circularly-Polarized Compact Wideband Patch Antenna Loaded by Metamaterial Structures

Simruni¹,

Jam²

2017

PIER C

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Abstract-In this paper a compact wideband aperture coupled microstrip patch antenna (MPA) with impedance bandwidth of 26.3% is designed. Size reduction of the radiating element and the slot in the ground plane is achieved by incorporating an interdigital capacitor (IDC) in the patch and a complementary split ring resonator (CSRR) close to the slot which offers composite right/left-hand (CRLH) antenna. An interdigital capacitor in the patch acts as series left-hand component, and the slot together with the CSRR in the ground plane acts as a left-hand parallel inductor. By this technique, the patch and slot dimensions compared with the initial designed antenna are reduced about 26.2% and 30.2%, respectively. Through cutting CSRRs with different arrangements in the ground plane, a dual frequency band antenna is designed. Finally, a compact wideband circularly-polarized (CP) MPA is proposed through imposing various perturbations in the current route in the ground plane of the antenna. The maximum gain and the impedance bandwidth of the designed CP antenna are 8.4 dBi and 25%, respectively. Two designed antennas are fabricated and tested. The measurement results confirm the simulation ones.

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“…Reconfigurable antennas have the ability to modify their characteristics in real time [1][2][3][4]. Based on their ability, different kinds of reconfigurable antennas are used in SDR to improve the performance of communication system, e.g., frequency reconfigurable [4,5], pattern reconfigurable [4], polarization reconfigurable [6,7] antenna, etc.…”

Section: Introductionmentioning

confidence: 99%

“…Having a critical look at the available literature it can be concluded that the use of frequency reconfigurable antennas dramatically reduces the overall system overheads [4][5][6][7][8][9][10]. In frequency reconfigurable slot antenna, frequency tuning is done by scaling the antenna dimensions electrically, by the integration of micro-electro-mechanical systems (MEMS) switches [8], PIN diodes [9,10], varactor diodes [11], etc.…”

Section: Introductionmentioning

confidence: 99%

Frequency Reconfigurable U-Slot Antenna for SDR Application

Sharma¹,

Tripathi²

2015

PIER Letters

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Abstract-In this paper, a novel frequency reconfigurable U-slot microstrip antenna with T-shaped feed line for Software Defined Radio applications is proposed. The proposed antenna, indexed as A-I in this paper, operates at three different frequencies: 1.85 GHz, 1.9 GHz and 2.4 GHz depending on the switching states of PIN diodes. Furthermore, to strengthen the proposed design concept and strategy another improved antenna (A-II) is designed and tested. In comparison to antenna A-I, the improved antenna design (A-II) utilizes four slots/PIN diodes in order to increase the number of reconfigurable frequency states. Depending on the switch states of four PIN diodes, antenna A-II operates on five different reconfigurable frequency bands centered at: 1.5 GHz, 1.6 GHz, 1.8 GHz, 1.9 GHz and 2.24 GHz. The measured results show a return loss better than 22 dB, maximum gain of 2.5 dB and maximum efficiency of 78%. Moreover, radiation pattern for the proposed antennas is stable at all operating frequencies.

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Polarization Reconfigurable U-Slot Patch Antenna

Cited by 204 publications

References 11 publications

Wideband Loop Antenna With Electronically Switchable Circular Polarization

Wideband Loop Antenna With Electronically Switchable Circular Polarization

A Circularly-Polarized Compact Wideband Patch Antenna Loaded by Metamaterial Structures

Frequency Reconfigurable U-Slot Antenna for SDR Application

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