A 3-D Meandered Probe-Fed Dual-Band Circularly Polarized Dielectric Resonator Antenna

Altaf, Amir; Jung, Jin‐Woo; Yang, Youngoo; Lee, Kang-Yoon; Yi, Sang-Hwa; Hwang, Keum Cheol

doi:10.3390/s18082421

Cited by 3 publications

(2 citation statements)

References 19 publications

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“…Recently, there is an interest in developing single-point fed dual-band CP DRAs to manage the demands of modern communication systems. Several DRAs have been demonstrated that excite the orthogonal pairs of fundamental and higher-order modes to produce dual-band circular polarization [1][2][3][4][5][6][7][8][9]. For instance, a grooved DR with corner truncation is designed that has a dual-band CP response [1].…”

Section: Introductionmentioning

confidence: 99%

Dual-Band Circularly Polarized Dielectric Resonator Antenna for WLAN and WiMAX Applications

Altaf

Seo

2020

Sensors

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In this paper, a new dual-band circularly polarized (CP) dielectric resonator antenna for WLAN and WiMAX applications is proposed. The dielectric resonator has an asymmetric Y-shaped geometry. By properly selecting the length of the arms, the pairs of fundamental (TE 111 ) and second-order (TE 211 ) are excited separately at the design frequencies to radiate the CP wave. The measurement shows that the fabricated antenna exhibits a wide impedance bandwidth for |S 11 | < −10 dB of 62.07% (2.2–4.18 GHz). The far-field measurements in the broadside direction demonstrated a dual-band CP response with 3 dB ARBWs of 4.92%(2.38–2.5 GHz) at the lower and 12.64% (3.26–3.70 GHz) at the upper band. The measured CP bands cover the entire frequency range of WLAN (2.401–2.495 GHz) and WiMAX (3.4–3.69 GHz) at the lower and upper bands, respectively.

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Section: Introductionmentioning

confidence: 99%

Dual-Band Circularly Polarized Dielectric Resonator Antenna for WLAN and WiMAX Applications

Altaf

Seo

2020

Sensors

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“…To cope with the demands of modern communication systems, the single-point fed dual-band CP DRAs have been demonstrated in recent times. One such technique involves the separate excitation of fundamental and higher modes of the DR [ 12 , 13 , 14 , 15 , 16 ]. The other includes the use of hybrid configuration where modes of the DR and coupling slot are separately excited [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Triple-Band Dual-Sense Circularly Polarized Hybrid Dielectric Resonator Antenna

Altaf

Seo

2018

Sensors

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In this paper, a triple-band dual-sense circularly polarized (CP) hybrid dielectric resonator antenna is proposed. A modified hexagonal dielectric resonator (DR) is top-loaded with a square microstrip ring (SMR). A vertical-tapered-strip connected to a 50-Ω microstrip line is used to excite the proposed antenna. It is found that the lower and central CP bands correspond to left-handed circular polarization and are produced by the TM11 and TE111 modes of the SMR and modified hexagonal DR, respectively. The upper CP band is formed by the combination of the quasi-TM21 mode of the SMR and quasi-TE111 mode of the DR that exhibits right-handed circular polarization. The measurement results of the fabricated prototype show triple-band response for |S11|< −10 dB with impedance bandwidths (IBWs) of 17.4% (1.75–2.03 GHz), 28.13% (2.23–2.96 GHz), and 2.97% (3.65–3.76 GHz) in the lower, central, and upper bands, respectively. The measured 3 dB axial ratio bandwidths lying within −10 dB IBWs are 3.69% (1.86–1.93 GHz), 5.46% (2.67–2.82 GHz), and 2.15% (3.68–3.76 GHz) along with the peak gains of 5 dBic, 5.28 dBic, and 2.36 dBic in the lower, central, and upper bands, respectively.

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Modified Microstrip Feed Hybrid Rectangular Dielectric Resonator Antenna for Wireless Tri-Band Applications

Chaitanya,

Manjunathachari

2023

Measurement Science Review

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This article reports the Modified Microstrip Feed Hybrid Rectangular Dielectric Resonator Antenna (RDRA). The proposed structure has a ground plane with a plus-shaped slot on an FR4 substrate with a height of 1.6 mm and dimensions of 38 mm x 35 mm. The proposed Dielectric resonator antenna is made of a material with 10 as its dielectric constant, and the dimensions of the DR are 19 x 20 x 18 mm3. The DR is connected to a modified microstrip feed with an octagonal ring through the plus-shaped slot in the ground. The proposed structure operates in frequencies from 2.60 GHz - 2.74 GHz, 3.12 GHz - 3.37 GHz, and 4.25 GHz - 4.37 GHz. The resonant frequency of the final proposed RDRA is 2.68 GHz, 3.26 GHz, and 4.31 GHz, which covers WLAN, WIMAX and Wireless Avionics Intra-Communications (WAIC) applications, respectively. The entire structure was simulated using the CST microwave studio. The simulated results agree with the measured results and both are presented. The compact size, stable radiation pattern and reasonable gain make this antenna suitable for the proposed applications.

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A 3-D Meandered Probe-Fed Dual-Band Circularly Polarized Dielectric Resonator Antenna

Cited by 3 publications

References 19 publications

Dual-Band Circularly Polarized Dielectric Resonator Antenna for WLAN and WiMAX Applications

Dual-Band Circularly Polarized Dielectric Resonator Antenna for WLAN and WiMAX Applications

Triple-Band Dual-Sense Circularly Polarized Hybrid Dielectric Resonator Antenna

Modified Microstrip Feed Hybrid Rectangular Dielectric Resonator Antenna for Wireless Tri-Band Applications

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