A Circularly Polarized Dual-Axis Wide-Angle Rectenna Employing a Dual-Feed Array Antenna With Inclined Patches

Phyoe, Thet Paing; Nishiyama, Eisuke; Toyoda, and Ichihiko

doi:10.2528/pierm18100505

Cited by 4 publications

(3 citation statements)

References 12 publications

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“…Here, Ports H and E are isolated from each other due to the difference of the propagation modes. When the signal is fed from Port H, microstrip-slot line T branch is a parallel branch, and the impedance of Port H is half of the impedance of Ports S1 and S2 [14,15]. On the other hand, the impedance of Port E is the double of the impedance of Ports S1 and S2 because slot line T branch is a series branch.…”

Section: Magic-tmentioning

confidence: 99%

A Magic-T Integrated 5.8-GHZ Repeater Array Antenna Using Dual-Feed Network

Phyoe¹,

Nishiyama²,

Toyoda³

2019

PIER M

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In this paper, a novel high-gain repeater antenna integrating a dual-feed network is proposed to receive and transmit RF signals separately by two ports. The proposed array antenna has four linearly polarized microstrip antenna elements, two feed networks, and one planar magic-T. The distance between the elements of the array antenna is matched to obtain the minimum sidelobe level and maximum half-power beamwidth for transmitting and receiving purpose. The planar magic-T is effectively used to meet two different bi-directional radiation patterns with a simple structure. Performances of the array antenna are experimentally confirmed, and the gain of the antenna for each port is better than 10.3 dBi. The measured 10-dB impedance bandwidth of the antenna is wider than 580 MHz (10%).

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Section: Magic-tmentioning

confidence: 99%

A Magic-T Integrated 5.8-GHZ Repeater Array Antenna Using Dual-Feed Network

Phyoe¹,

Nishiyama²,

Toyoda³

2019

PIER M

Self Cite

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“…The performance degradation of the RF power combining technique is discussed and it can be recovered by using the anti-phase signals of the received RF waves [5]. We also proposed many advanced linearly polarized array antennas for different applications such as a direction of arrival (DOA) estimating antenna [6], beam steering antenna [7], repeater antenna [8], antennas for wide-angle rectennas [9,10] by using the in-phase and anti-phase signals.…”

Section: Introductionmentioning

confidence: 99%

A circularly polarized dual-axis dual-beam array antenna employing a dual-feed network with diagonal 90° phase shift

2019

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A 2 × 2 circularly polarized array antenna integrating a dual-feed network is proposed to provide a dual-beam radiation patterns for the wideangle rectennas. The two diagonal antenna elements of the array antenna are quarter-wavelength ahead of another diagonal antenna elements. The planar magic-Ts are effectively used to obtain the desired radiation patterns with a simple structure. The design and performance of the array antenna is confirmed with experimental results and the proposed antenna has the same radiation patterns in the x-z and y-z planes. The measured gain of the proposed antenna is more than 9 dBic and 3-dB axial ratio bandwidth is 0.86%. The 10-dB impedance bandwidth of the antenna is better than 4.4%.

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“…CP antennas can reduce the Faraday rotation effect of the ionosphere, and they do not require strict alignment between transmitting and receiving antennas. Among them, the CP microstrip patch array antennas are very desirable for microwave communication applications due to their simple structure, low profile, light weight, and easy manufacturing [1][2][3]. Recently, reconfigurable polarization has been a lot of research interests in CP antennas and agile antennas.…”

mentioning

confidence: 99%

A phase shift keying modulator integrated single‐feed circular polarization agile array antenna

Phyoe,

Hasan,

Nishiyama

et al. 2023

Electronics Letters

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This paper proposes a novel design of a circular polarization agile array antenna using two phase shift keying (PSK) modulators. The proposed antenna includes four dual linear polarization microstrip patch antenna elements, two PSK modulators, two quarter‐wavelength slot transmission lines, microstrip‐slot line transitions, and a single feed network. The PSK modulator generates phase switching of either 180° or 0° of the vertical signals of each antenna element with the aid of the four diodes. The quarter‐wavelength slot transmission lines are added to adjust the 90° phase difference between orthogonal signals of the array antenna. By controlling the PSK modulators, the proposed antenna can achieve dual circular polarization switching capabilities. A prototype antenna is used to demonstrate the antenna concept. The measured results confirm the concept with a good agreement between the simulated and measured performances. The proposed antenna has no complex circuits for RF and DC signals, and it provides a compact structure.

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A Circularly Polarized Dual-Axis Wide-Angle Rectenna Employing a Dual-Feed Array Antenna With Inclined Patches

Cited by 4 publications

References 12 publications

A Magic-T Integrated 5.8-GHZ Repeater Array Antenna Using Dual-Feed Network

A Magic-T Integrated 5.8-GHZ Repeater Array Antenna Using Dual-Feed Network

A circularly polarized dual-axis dual-beam array antenna employing a dual-feed network with diagonal 90° phase shift

A phase shift keying modulator integrated single‐feed circular polarization agile array antenna

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