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slot-coupled dielectric resonator antennas

Investigation of a Cross-Slot-Coupled Dual-Band Circularly Polarized Hybrid Dielectric Resonator Antenna

Investigation of a Cross-Slot-Coupled Dual-Band Circularly Polarized Hybrid Dielectric Resonator Antenna

... know, antennas with circular polarization (CP) [15–25] can reduce polarization mismatch between transmitting and receiving antennas in wireless communication ...such antennas with dual-band CP ...

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Circularly Polarized Cross-Slot-Coupled Stacked Dielectric Resonator Antenna for Wireless Applications

Circularly Polarized Cross-Slot-Coupled Stacked Dielectric Resonator Antenna for Wireless Applications

... Dielectric resonator antennas (DRAs) were first discovered in 1983 by Long et. al., and since then they have been widely studied [1]. There have been several works reported in literature to improve ...

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Design of Rectangular Dielectric Resonator Antenna Fed by Dielectric Image Line with a Finite Ground Plane

Design of Rectangular Dielectric Resonator Antenna Fed by Dielectric Image Line with a Finite Ground Plane

... excite slot-coupled patch and DR antennas, while their transmission loss is high espe- cially at microwave and millimeter ...narrow slot. The slot-coupled microstrip patch ...

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A Varactor-Tuned Aperture Coupled Dual Band Cylindrical Dielectric Resonator Antenna for C-Band Application

A Varactor-Tuned Aperture Coupled Dual Band Cylindrical Dielectric Resonator Antenna for C-Band Application

... patch antennas. Though DRAs and microstrip patch antennas have their own merit and potential, DRAs appear to be a possible replacement for the microstrip patch antenna, especially at millimeter-wave ...

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Development of Polymer-Based Dielectric Resonator Antennas for Millimeter-Wave Applications

Development of Polymer-Based Dielectric Resonator Antennas for Millimeter-Wave Applications

... is coupled by a 4 mm × 1 mm slot on a 35 mm × 35 mm rectangular ground ...the slot are symmetrical under the microstrip line with ∆L = 1 ...with dielectric waveguide model theory (DWM: ...

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Investigation of Wideband One-Step Stair-Shaped Dielectric Resonator Antennas

Investigation of Wideband One-Step Stair-Shaped Dielectric Resonator Antennas

... a slot-coupled one-step stair-shaped DRA [12] and a probe-fed one-step stair-shaped DRA [9], respectively, and when another step is added a wider bandwidth of 62% is achieved for the two-step stair-shaped ...

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Circular Polarized Dielectric Resonator Antennas Using a Single Probe Feed

Circular Polarized Dielectric Resonator Antennas Using a Single Probe Feed

... annular slot, circular polarization operation of the slot-coupled DRAhas been implemented ...single slot feed and a probe has also been investigated [16, ...cubical dielectric and an ...

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International Journal of Scientific Research and Reviews A Survey on recent techniques to achieve Circular polarization for Wideband Dielectric Resonator antenna

International Journal of Scientific Research and Reviews A Survey on recent techniques to achieve Circular polarization for Wideband Dielectric Resonator antenna

... band dielectric resonator antenna ...in Dielectric Resonator ...about Dielectric resonator antenna and its advantage is introduced, and afterward all the advancements made in the ...

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Wideband Circularly Polarized Dielectric Resonator Antenna with a Square Spiral Microstrip Feedline

Wideband Circularly Polarized Dielectric Resonator Antenna with a Square Spiral Microstrip Feedline

... the dielectric resonator antenna (DRA) has been widely explored because of a number of advantages such as its small size, low loss and ease of excitation ...polarized antennas owing to their reduced ...

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Integrated Ultra-Wideband Plannar Monopole with Cylindrical Dielectric Resonator Antennas

Integrated Ultra-Wideband Plannar Monopole with Cylindrical Dielectric Resonator Antennas

... In recent years, the underutilization of the frequency spectrum has inspired the use of reconfigurable radio concepts, such as cognitive radio (CR) [10]. In category A of CR systems, two antennas were used. A ...

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Analysis and Design of Rectangular Uniaxial and Biaxial Anisotropic Dielectric Resonator Antennas

Analysis and Design of Rectangular Uniaxial and Biaxial Anisotropic Dielectric Resonator Antennas

... To model the dielectric resonator antenna, the waveguide is truncated along the y -direction at y = ±b/ 2, as shown in Fig. 2, and replaced by two air-filled hollow waveguides, which operate below cutoff ...

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Dual-Sense Dual-Polarized Hybrid Rectangular Dielectric Resonator Antenna for Multiband Applications

Dual-Sense Dual-Polarized Hybrid Rectangular Dielectric Resonator Antenna for Multiband Applications

... of the ring lies in between 0.5 mm to 3.0 mm [13]. In the case of the proposed antenna, both conditions are fulfilled. From Eq. (1), the resonant frequency of the square-ring monopole is found to be 1.9 GHz. There is no ...

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Small Transmit-Receive Frequency Space Filtering Duplex Patch Antenna Array with High Isolation

Small Transmit-Receive Frequency Space Filtering Duplex Patch Antenna Array with High Isolation

... As shown in Figure 1(b), the Tx and Rx ports exploit tap coupling to the microstrip resonators, then the microstrip resonators couple to the patches via the H-slot resonators. The microstrip resonators act as the ...

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A Survey on recent techniques to achieve Circular polarization for Wideband Dielectric Resonator antenna

A Survey on recent techniques to achieve Circular polarization for Wideband Dielectric Resonator antenna

... wherein, dielectric resonator antenna is combined with other antennas such microstrip antenna, monopoles etc in order to achieve enhanced bandwidth performance up to 117 ...individual antennas ...

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Wideband Rectangular Dielectric Resonator Antenna (DRA) with Slot-Fed Design

Wideband Rectangular Dielectric Resonator Antenna (DRA) with Slot-Fed Design

... dielectric constant approximate equals 1. Fig. 6 shows the measured and simulated reflection coefficient results. A reasonable agreement between theoretical results and measured ones is observed. The impedance ...

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Aperture and Mutual Coupled Cylindrical Dielectric Resonator Antenna Array

Aperture and Mutual Coupled Cylindrical Dielectric Resonator Antenna Array

... mutual coupled 3-element array of CDRA fed by aperture coupled microstrip line is presented for ...and slot sizes are adjusted to achieve the best return loss (S 11 < −10 ...

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A Wideband Trapezoidal Dielectric Resonator Antenna with Circular Polarization

A Wideband Trapezoidal Dielectric Resonator Antenna with Circular Polarization

... 1. Wee, F. H., M. F. B. A. Malek, S. Sreekantan, A. U. Al-Amani, F. Ghani, and K. Y. You, “Investigation of the characteristics of Barium Strontium Titanate (BST) dielectric resonator ceramic loaded on ...

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Two-Layer Sapphire Rectangular Dielectric Resonator Antenna for Rugged Communications

Two-Layer Sapphire Rectangular Dielectric Resonator Antenna for Rugged Communications

... Dielectric waveguide model has been utilized for finding the resonant frequency and initial dimensions of rectangular dielectric resonator antenna. By the magnetic wall boundary condition and solving ...

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Wideband Sierpinski Carpet Fractal Shaped Cylindrical Dielectric Resonator Antenna for X Band Application

Wideband Sierpinski Carpet Fractal Shaped Cylindrical Dielectric Resonator Antenna for X Band Application

... ctric constant as one and ensuring the maximum occu- pancy of the plug region. Keefe and Kingsley [7] re- ported RF range liquid DRA that uses water as dielectric which adds a new range of dielectric ...

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Broadband Circularly Polarized Dielectric Resonator Antenna with Annular Slot Excitation

Broadband Circularly Polarized Dielectric Resonator Antenna with Annular Slot Excitation

... Abstract—A broadband circularly polarized (CP) cylindrical dielec- tric resonator antenna (DRA) is presented. The DRA is excited by an L-shaped microstrip feed line through the coupling of an annular slot ...

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