A Wideband Circularly Polarized Microstrip Antenna With Multiple Modes

Wang, Lei; En, Yunfei

doi:10.1109/ojap.2020.3009884

Cited by 20 publications

(15 citation statements)

References 24 publications

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“…Along with the high gain, the size of the design is the key parameter. Many studies have been proposed for such applications, such as integration of meta-surface with antenna [2][3][4][5], insertion of air gap between the antenna and metasurface layer [6], electromagnetic bandgap (EBG) structure [7], frequency selective surface (FSS) [8], artificial magnetic conductor (AMC) [9], and parasitic patches [10]. In [11], the main radiation part composed of two orthogonal bowtie dipole that are printed on both sides of the substrate, and are suspended at a distance of 62.5 mm above metallic reflector.…”

Section: Introductionmentioning

confidence: 99%

Compact and High Gain 4 × 4 Circularly Polarized Microstrip Patch Antenna Array for Next Generation Small Satellite

et al. 2021

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In this article, a high gain and compact 4 × 4 circularly polarized microstrip patch antenna array is reported for the data transmission of the next-generation small satellite. The radiating element of the circularly polarized antenna array is realized by the conventional model of the patch with truncated corners. A compact two-stage sequential rotational phase feeding is adopted that broadens the operating bandwidth of the 4 × 4 array. A small stub is embedded in the sequential rotational feed, which results in better performance in terms of the S-parameters and sequential phases at the output ports than sequential rotational feed without open stub. A prototype of the array is fabricated and measured. Fulfilling the application requirements of the next-generation small satellites, the array has the left-handed circularly polarized gain of more than 12 dBic with the axial ratio level below 1.5 dB in the ±10∘ angular space with respect to the broadside direction for the whole bandwidth from 8.05 GHz to 8.25 GHz. Moreover, the left-handed circularly polarized gain varies from 15 to 15.5 dBic in the desired band. The radiation patterns are measured; both the co- and X-pol are validated.

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Section: Introductionmentioning

confidence: 99%

Compact and High Gain 4 × 4 Circularly Polarized Microstrip Patch Antenna Array for Next Generation Small Satellite

et al. 2021

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“…Additionally, based on the SP feed-network, the stacked technology is effective in CPAAs [21][22][23][24][25]. Round [21] and rectangular [22] patches as parasitic elements are stacked above the SP rotated feeding structure, which realize 6% and 28.1% of CP bandwidth, respectively.…”

Section: Introductionmentioning

confidence: 99%

A Compact Wideband Circularly Polarized Microstrip Slot Antenna with Parasitic Elements

Xia

Diao

Yin³

et al. 2021

International Journal of Antennas and Propagation

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A compact wideband circularly polarized (CP) microstrip slot antenna (MSA) with parasitic elements is designed in this letter. The CP MSA comprises a square-loop sequential-phase (SP) feeding configuration, four rotated rectangular patches, and four L-shaped slots embedded in the ground plane. The square-loop SP feeding structure comprises a square loop and an arc-shaped strip, which could provide a 270° phase difference. Four rotated rectangular patches are placed at the edge of the square-loop feeding configuration using a capacitively tightly coupled feeding method to stimulate the CP resonant mode. After selecting these elements and tuning proper dimensions, the broad operating bandwidths of 4.38–5.25 GHz (18%) for |S11| <–10 dB and 4.65–5.31 GHz (13.2%) for AR <3 dB could be realized. Hence, the designed CP MSA has a potential application value in wireless communication.

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“…Various methods have been reported to realize CP property. [20][21][22][23][24][25][26][27][28][29][30][31][32][33] They can be divided into two types: the radiating type and the feeding type.…”

Section: Introductionmentioning

confidence: 99%

“…Perturbation method such as truncating radiating patch, introducing microstrip stubs or grooving slots, et.al, is adopted to excite two near-degenerate resonant modes. [20][21][22][23][24][25] On the other hand, a feeding network or deformation feeding geometry is introduced to feed a CP element or an array antenna. [26][27][28][29][30][31][32][33] For example, L-shaped strip or slot coupling method is usually introduced to excite CP waves.…”

Section: Introductionmentioning

confidence: 99%

Circularly polarized microstrip antenna with electrically large property by using tilted periodical I‐shaped resonant inclusions

Cao

Wang

2021

Int J RF Mic Comp-Aid Eng

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Usually circularly polarization (CP) of microstrip antennas is designed by using perturbed radiating patch or phase-shift feeding network. In this paper, perturbation of inter-medium metamaterial layer is proposed to tune the polarization characteristics of square microstrip antenna. As given in former design, effective media parameters of one I-shaped metamaterial is in the band of ε>0 and μ<0 and electrically large property (ELP) of more than 4 times larger than conventional fundamental mode is achieved. By changing the geometry and placement location of periodical resonant inclusions, linear polarization as well as CP, either left-handed CP (LHCP) or right-handed CP, can be obtained without changing the square radiating patch and the feeding structure. Effective media parameters of different types of metamaterial are also extracted to confirm that ELP can be maintained. Finally, by using 45 tilted periodical I-shaped resonant inclusions, one prototype with LHCP is fabricated for verification. Good agreement is achieved between the simulated and measured results.The proposed method gives new option to design antennas with different polarization states in millimeter wave or even terahertz wave band in future.

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A Wideband Circularly Polarized Microstrip Antenna With Multiple Modes

Cited by 20 publications

References 24 publications

Compact and High Gain 4 × 4 Circularly Polarized Microstrip Patch Antenna Array for Next Generation Small Satellite

Compact and High Gain 4 × 4 Circularly Polarized Microstrip Patch Antenna Array for Next Generation Small Satellite

A Compact Wideband Circularly Polarized Microstrip Slot Antenna with Parasitic Elements

Circularly polarized microstrip antenna with electrically large property by using tilted periodical I‐shaped resonant inclusions

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