A Simple Tri-Polarization Reconfigurable Magneto-Electric Dipole Antenna

Shi, Yan; Cai, Yi; Zhang, Xiang-Fan; Kang, Kai

doi:10.1109/lawp.2017.2786945

Cited by 40 publications

(25 citation statements)

References 12 publications

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“…By introducing PIN diodes on the patch, reconfigurable omnidirectional antennas are obtained [1], [2]. A wideband polarization reconfigurable magneto-electric dipole can realize three polarization modes with a profile of 0.21λ 0 (λ 0 is the wavelength in free space at the center operated frequency) [3]. The polarization of the antenna can be switched among linear polarization (LP), lefthand circular polarization (LHCP) and right-hand circular polarization (RHCP) by mechanically changing the relative positions of the polarization conversion metasurface and the slot antenna [4], [5].…”

Section: Introductionmentioning

confidence: 99%

Broadband and Low-Profile Penta-Polarization Reconfigurable Metamaterial Antenna

et al. 2020

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In this paper, a penta-polarization reconfigurable antenna with mushroom-type metamaterial loading is proposed, which can operate in x-direction linear polarization (x-LP), y-LP, 45 •-LP, left-hand circular polarization (LHCP) and right-hand circular polarization (RHCP). In order to realize polarization reconfigurability, a dual-port dual LP mushroom antenna excited by crossed H-shape slot is designed by characteristic mode analysis (CMA). Through shifting the states of PIN diodes on the reconfigurable feeding network, the amplitude and phase distributions of two ports of the dual LP antenna can be dynamically controlled and the five polarization modes can be achieved. A prototype with a profile of 0.06λ 0 at 5.2 GHz (λ 0 is the operated wavelength in free space) is simulated and measured. The measurement results exhibit a wide impedance bandwidth over 33.2% for LPs and over 38.7% for CPs. In addition, the measured axial ratio bandwidths are 28.0% for LHCP and 30.3% for RHCP, and the maximum measured boresight gains of all modes are higher than 8.2 dBi. The simulated and measured results verify that the proposed antenna can achieve a balance between low-profile and broadband on the basis of penta-polarization reconfigurability. The proposed antenna can be applied to polarization diversity and C band satellite communication. INDEX TERMS Broadband antenna, characteristic mode analysis (CMA), low-profile, metamaterial (MTM), PIN diode, polarization reconfigurable antenna.

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Section: Introductionmentioning

confidence: 99%

Broadband and Low-Profile Penta-Polarization Reconfigurable Metamaterial Antenna

et al. 2020

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“…This technique is not so interesting because it leads to non-compact antenna systems. As the second method, radiators can be altered appropriately, such as truncating and etching slots on them, with some switches to change the antenna polarization [2][3][4][5]. In this case, the switching elements are directly connected to antennas and can affect the antenna properties such as radiation pattern, gain and efficiency due to their parasitic elements.…”

Section: Introductionmentioning

confidence: 99%

Polarization Reconfigurable Slot-Fed Cylindrical Dielectric Resonator Antenna

Esmaeili¹,

Laurin²

2020

PIER

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A new design for a cylindrical dielectric resonator antenna (DRA) with a capability of switching between circular, linear horizontal and linear vertical polarizations is introduced. The DRA, operating at the center frequency of 3.25 GHz, is fed by a microstrip line through two dog-bone slots. In this design, only two PIN diodes are employed as switching elements which significantly decreases the complexity of DC biasing circuits compared to existing designs. The PIN diodes are embedded in transformers connected to the feeding microstrip lines. This technique conveniently allows to make compensations for parasitic effects of the PIN diodes junction capacitors on the antenna matching bandwidth. The circular, linear horizontal and linear vertical polarizations have a bandwidth of 22%, 17% and 18%, respectively. The 3-dB axial ratio bandwidth for the circular polarization is 12%. The measured results obtained from prototyped antenna agree well with simulated results of the designed antenna system, which confirms the validity of the design process.

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“…By filling different oblique containers with Ethyl acetate, LHCP and RHCP are switched in Reference . Different reconfigurable magnetic electric dipole antennas were proposed in References . By inserting some p‐i‐n diodes in the feeding structure and the radiation portion, dual‐polarization, tri‐polarization, and quad‐polarization are switched, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…Different reconfigurable magnetic electric dipole antennas were proposed in References . By inserting some p‐i‐n diodes in the feeding structure and the radiation portion, dual‐polarization, tri‐polarization, and quad‐polarization are switched, respectively. In Reference , 12 diodes are introduced in four electric dipoles to reconfigure six polarizations for broadside radiation.…”

Section: Introductionmentioning

confidence: 99%

Novel planar reconfigurable circularly polarized complementary antenna for unidirectional end‐fire radiation

Wang

Jiao

Weng

2020

Int J RF Microw Comput Aided Eng

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In this article, a novel planar reconfigurable circular polarization (CP) complementary antenna for unidirectional end‐fire radiation is proposed. Its radiator is the combination of a shorted quarter wavelength patch and an electric dipole, which provide the vertical and horizontal polarizations, respectively. By adding a 90° phase delay line, the proposed antenna radiates CP electromagnetic waves in the unidirectional end‐fire direction. Four p‐i‐n diodes are also inserted at joints of the electric dipole and the phase delay lines, and two orthogonal CP states, left‐hand (LH) and right‐hand (RH) CPs, can be switched. In order to reduce the number of DC bias lines, electric dipole arms on both sides of the substrate are connected by metal via‐holes, which simplifies the DC bias lines. The proposed antenna at 2.45 GHz is designed and fabricated. Its measured impedance bandwidth with |S11| < −10 dB and 3‐dB axial ratio bandwidth are 2.1% and 10.7%, respectively. Additionally, its maximum half power beamwidth in xoz plane is 196°. Reasonable agreement between the measured and simulated results validates the polarization reconfigurability of the proposed antenna.

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A Simple Tri-Polarization Reconfigurable Magneto-Electric Dipole Antenna

Cited by 40 publications

References 12 publications

Broadband and Low-Profile Penta-Polarization Reconfigurable Metamaterial Antenna

Broadband and Low-Profile Penta-Polarization Reconfigurable Metamaterial Antenna

Polarization Reconfigurable Slot-Fed Cylindrical Dielectric Resonator Antenna

Novel planar reconfigurable circularly polarized complementary antenna for unidirectional end‐fire radiation

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