Pattern Reconfigurable High Gain Spherical Dielectric Resonator Antenna Operating on Higher Order Mode

Ahn, ByungKuon; Jo, Hye-Won; Yoo, Jong-Sang; Yu, Jong‐Won; Lee, Hanlim

doi:10.1109/lawp.2018.2882871

Cited by 44 publications

(24 citation statements)

References 12 publications

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“…Although the pattern reconfigurable antenna in [13] has bigger deflection angles, it shows lower radiation efficiency and has much more PIN diodes. The antenna in [14] realises three pattern reconfigurable modes, but with narrower bandwidth and more complex feeding network. To sum up, it can be seen that the proposed antenna has higher gain and higher radiation efficiency when compared with the other designs in the table.…”

Section: Resultsmentioning

confidence: 99%

Differentially fed six‐beam switchable reconfigurable antenna

Jin

et al. 2020

IET Microwaves, Antennas & Propagation

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Differentially fed six‐beam switchable reconfigurable antenna is proposed in this study. The antenna consists of radiators, parasitic elements, cross‐shaped feeding network and the ground plane. The radiators are formed by two pairs of gear‐shaped cross dipoles. By changing the excitation differential ports to drive one of two pairs of dipoles, and by enabling different reflectors, the beam can be switched to point to six different directions with different zenith and azimuth angles. For all the beam directions, the proposed antenna can obtain −10 dB differential reflection coefficient of 20.8% operating from 3.01 to 3.76 GHz, a high average gain of 7.6 dBi and radiation efficiency of 80%.

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Section: Resultsmentioning

confidence: 99%

Differentially fed six‐beam switchable reconfigurable antenna

Jin

et al. 2020

IET Microwaves, Antennas & Propagation

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“…To demonstrate the scanning performance of a phased array antenna composed of the PRA elements based on the guideline, we use a three-directional pattern reconfigurable high gain antenna model proposed by our research group 19,29 . The concept of wide-angle scanning phased array antenna using three-directional PRA elements was presented in before 11 .…”

Section: Resultsmentioning

confidence: 99%

“…The second method is using pattern reconfigurable antenna (PRA) elements. The PRA refers to an antenna which can reconfigure its radiation pattern in various directions while maintaining the operating frequency, and it includes a switching network to control the switching modes 10–19 . The scanning concepts of a phased array antenna using the PRA elements are shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

“…When the PRA elements designed under the guideline are used, the array antenna can achieve the desired scanning performance by dividing the scanning range into several subspaces. To achieve a scanning range of in accordance with the guideline, we used a high gain PRA model proposed by our research group 19,29 . The proposed high gain PRA model can reconfigure its beam pattern in three directions using a reconfigurable switching network and the size is 0.53.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Wide-Angle Scanning Phased Array Antenna using High Gain Pattern Reconfigurable Antenna Elements

Ahn

Hwang

Kim

et al. 2019

Sci Rep

Self Cite

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This paper presents a wide-angle scanning phased array antenna using high gain pattern reconfigurable antenna (PRA) elements. Using PRA elements is an attractive solution for wide-angle scanning phased array antennas because the scanning range can be divided into several subspaces. To achieve the desired scanning performance, some characteristics of the PRA element such as the number of switching modes, tilt angle, and maximum half-power beamwidth (HPBW) are required. We analyzed the required characteristics of the PRA element according to the target scanning range and element spacing, and presented a PRA element design guideline for phased array antennas. In accordance with the guideline, the scanning range was set as ±70° and a high gain PRA element with three reconfigurable patterns was used to compose an 8x1 array antenna with 0.9 λ0 spacing. After analyzing whether the active element patterns meet the guideline, the array antenna was fabricated and measured to demonstrate the scanning performance. The fabricated array can scan its beam from -70° to 70° by dividing the scanning range into three subspaces. It shows that even if the array antenna has large element spacing, the desired scanning performance can be obtained using the elements designed under the guideline.

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“…After that, a systematic study on hemispherical DRA including feed method, input impedance, working modes and so on have been made [2]- [8]. Other researches also have done many meaningful works on this topic [9]- [18]. In these investigations, there are two basic resonating modes namely TE 111 and TM 101 in hemispherical DRA.…”

Section: Introductionmentioning

confidence: 99%

Design of One-Eighth Spherical Dielectric Resonator Antenna for 5G Applications

Zheng

Wang

et al. 2020

IEEE Access

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A one-eighth spherical surface dielectric resonator antenna (OESS-DRA) is proposed first time. To analyze this thin shell structure, electromagnetic fields distribution is discussed by using the Hertz vector and boundary conditions. We simplify the solution of Maxwell equations by using Hertz vector because the polarization current is primary in the OESS-DRA. The Hertz vector can be expressed the current better. This proposed antenna is composed of one-eighth spherical dielectric shell fed by coaxial probe; and the ground with metal-corner-reflector makes the antenna with high gain and directional radiation properties. To verify this design, a fabricated sample is tested; results show the antenna covering bandwidth 4.56-6.88GHz, a high gain greater than 9.5dBi (peak gain 11.8dBi at 5.0GHz), and a high radiation efficiency over 85% in the entire working frequency band, as well. The OESS-DRA can be a good candidate in 5 th generation communication applications. INDEX TERMS Antenna, broadband, coaxial fed probe, directional, Hertz vector, one eighth spherical surface dielectric resonator.

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Pattern Reconfigurable High Gain Spherical Dielectric Resonator Antenna Operating on Higher Order Mode

Cited by 44 publications

References 12 publications

Differentially fed six‐beam switchable reconfigurable antenna

Differentially fed six‐beam switchable reconfigurable antenna

Wide-Angle Scanning Phased Array Antenna using High Gain Pattern Reconfigurable Antenna Elements

Design of One-Eighth Spherical Dielectric Resonator Antenna for 5G Applications

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