A Novel Design of Dual Circularly Polarized Antenna Fed by L-Strip

Wu, Gao-Lei; Mu, Wei; Zhao, Gang; Jiao, Yong‐Chang

doi:10.2528/pier07092001

Cited by 59 publications

(44 citation statements)

References 17 publications

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“…The radiating patch is square and uses two U-shaped coupling slots for obtaining dual linear polarizations [11,12]. The center arms of the two U-shaped slots are parallel to the x and y axes (see Figure 1).…”

Section: Design Conceptsmentioning

confidence: 99%

“…Studies to achieve compact and broadband operations of microstrip antennas have increased greatly. Significant advances in the design of compact microstrip antennas with broadband, dualfrequency, dual-polarized, circularly polarized, and gain-enhanced operations have been reported over the past years [3,4,14,15]. By embedding the U-shaped coupling slots in the ground plane, the planar antenna shows good impedance matching in a wide band.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design and Fabrication of One Novel Multi-Polarized Multi-Layer Wideband Planar Antenna

Wu¹,

Hou²,

Wang³

et al. 2008

PIER C

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Abstract-A new multi-layer planar array architecture to achieve multi-polarized radiation is developed in this paper. The design concept is based on embedding U-shaped coupling slots in the ground plane to extend the bandwidth. The proposed antennas have two feed ports, by adjusting the feeding properly, the antennas can transmit arbitrary elliptic polarized signal theoretically. Return loss and radiation patterns are measured for the 1-element, 2-element, 4-element, 16-element antenna arrays at 12.5 GHz. Radiation patterns of the antenna arrays show close agreement to the predicted ones in the shape of the main beam. By further incorporating properly designed feed networks, the −20 dB return-loss bandwidth of the proposed antenna arrays can cover the 12.5 GHz frequency band .Design details and experimental results are presented and discussed.

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Section: Design Conceptsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and Fabrication of One Novel Multi-Polarized Multi-Layer Wideband Planar Antenna

Wu¹,

Hou²,

Wang³

et al. 2008

PIER C

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show abstract

“…The effect of beam pulling results in a beam-pointing error (BPE), which is defined as the deviation of the mainbeam from that of the array factor pattern. Using omnidirectional antennas or an antenna element with low directivity [20][21][22][23][24][25][26], such as a microstrip patch, slot antennas, and printed dipoles, or increasing the number of elements reduces this error [27]. Using a low-directivity element also decreases the dependence of the retrodirected power on the interrogation angle.…”

Section: Antenna Element and Array Spacingmentioning

confidence: 99%

Retrodirective Array Technology

Guo¹,

Shi²,

Chen³

2008

PIER B

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Abstract-Retrodirective arrays have garnered much attention due to the unique feature of automatically responding to an interrogator without any prior knowledge of the location of the incoming signal. This paper describes the basic concept of retrodirective array technology, discusses the three retrodirective array topologies with their advantages and disadvantages. Characterizations of the selfsteering performance in a retrodirective antenna array are described. A series of array design considerations in the retrodirective array systems is presented, and further researches in this area are presented.

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“…With the rapid development of modern wireless communication systems, dual-band Doherty power amplifier [17] and dual-band-or dual-circularly polarized antenna and antenna array [18][19][20] featured lower cost and compact size have drawn much attention recently. Therefore, the branch-line couplers as the key components of it and several functions are required simultaneously, such as dualband operation, arbitrary coupling levels, and inherent impedance transforming.…”

Section: Introductionmentioning

confidence: 99%

Generalized Impedance-Transforming Dual-Band Branch-Line Couplers for Arbitrary Coupling Levels

Liu¹,

Liu²,

Wu³

et al. 2013

PIER B

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Abstract-High-performance dual-band Doherty power amplifier and non-uniform circularly polarized antenna array require impedancetransforming unequal dual-band 90 • branch-line couplers for power dividing and phase shifting in the feed networks. In this paper, an analytical design methodology of generalized impedance-transforming dual-band branch-line couplers for arbitrary coupling levels is proposed. The coupler features wide range of realizable frequency ratio, multiple flexible selections of open-or short-circuited and pi-or T-network topologies. For demonstration, four numerical examples with different parameters are presented. Furthermore, two microstrip couplers based on open-circuited pi-and T-network topologies were fabricated and measured. The measured results show good performance at dual 1.8/3.45 GHz bands. The fractional bandwidths defined by the fluctuation of the coupling level and the phase difference less than ±0.5 dB and ±5 • are up to 17% and 18%, 18% and 2% for open-circuited pi-and T-network topologies, respectively.

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A Novel Design of Dual Circularly Polarized Antenna Fed by L-Strip

Cited by 59 publications

References 17 publications

Design and Fabrication of One Novel Multi-Polarized Multi-Layer Wideband Planar Antenna

Design and Fabrication of One Novel Multi-Polarized Multi-Layer Wideband Planar Antenna

Retrodirective Array Technology

Generalized Impedance-Transforming Dual-Band Branch-Line Couplers for Arbitrary Coupling Levels

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