Pattern-Reconfigurable Dielectric Resonator Antenna With Endfire Beam-Scanning Feature

Chen, Jianxin; Ke, Yan‐Hui; Yang, Ling‐Ling; Yang, Wenwen

doi:10.1109/lawp.2022.3169543

Cited by 20 publications

(4 citation statements)

References 24 publications

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“…Multiple substrates with metallic posts add complexity to the design. Continuous beam scanning from dielectric resonator antenna (DRA) 2 gives a stable radiation pattern between −82⁰ to +82⁰. Here, the DRA element is bulky and used 10 no of PIN diodes.…”

Section: Introductionmentioning

confidence: 99%

Design of multiband frequency reconfigurable antenna with switchable polarization states

Vinayagam,

Natarajan

2024

Micro & Optical Tech Letters

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This paper presents the design of multiband frequency reconfigurable patch antenna with switchable radiation pattern and polarization states. The antenna design is based on a circular patch radiator with a pair of metallic strips placed on diametrically opposite sides of it. Circular polarization (CP) from the antenna is excited by etching a pair of slots with a coaxial feed. When the diodes are OFF, the antenna resonates at 4.2, 6.6 GHz, (C band) and 8.07 GHz (X band) and the main beam is located at 0⁰ with CP at X band. The resonance at 4.2 and 8.5 GHz are observed when one of the diode is ON. The main beam at X band is being shifted from −30⁰ to 0⁰ and +30⁰ in the elevation plane during the change in operating modes. Peak gain of the antenna is 6 dBi in all the operating modes.

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Section: Introductionmentioning

confidence: 99%

Design of multiband frequency reconfigurable antenna with switchable polarization states

Vinayagam,

Natarajan

2024

Micro & Optical Tech Letters

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“…Moreover, the absence of ohmic losses renders DRAs particularly appealing for applications in millimeter-wave (mmWave) and terahertz (THz) systems [ 5 , 6 , 7 ]. Consequently, many studies have explored the development of frequency, pattern, and polarization reconfigurable DRAs, as reported in [ 8 , 9 , 10 , 11 , 12 , 13 , 14 ], for example.…”

Section: Introductionmentioning

confidence: 99%

Frequency-Reconfigurable Millimeter-Wave Rectangular Dielectric Resonator Antenna

Soltan,

Asfour,

Khamas

2024

Sensors

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This paper introduces an innovative and cost-effective approach for developing a millimeter-wave (mmWave) frequency-reconfigurable dielectric resonator antenna (DRA), which has not been reported before. The antenna integrates two rectangular DRA elements, where each DRA is centrally fed via a slot. A strategically positioned PIN diode is employed to exert control over performance by modulating the ON–OFF states of the diode, thereby simplifying the design process and reducing losses. In the OFF state, the first DRA, RDRA-I, exclusively supports the TE311 resonance mode at 24.3 GHz, offering a 2.66% impedance bandwidth and achieving a maximum broadside gain of 9.2 dBi. Conversely, in the ON state, RDRA-I and RDRA-II concurrently operate in the TE513 resonance mode at 29.3 GHz, providing a 2.7% impedance bandwidth and yielding a high gain of up to 11.8 dBi. Experimental results substantiate that the proposed antenna presents an attractive solution for applications necessitating frequency-reconfigurable and high-performance mmWave antennas in 5G and Beyond 5G (B5G) communication systems.

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“…There are various methods for obtaining pattern reconfigurable in DRA. Some of these methods which researchers use are electrical change such as using a passed antenna array [14], passed array with switch, capacitor loading [15], [16], electrical switch PIN diodes [17], [18], multi-feed [19], [20], multi-port with switches [21], switches on slot in ground plane [22]. On the other hand, some of the researchers used mechanical change, such as liquid material as a dielectric resonator by changing the material inside the dielectric resonator by using a pump to get different radiation patterns [23]- [25], and the other researcher used a motor to rotate the antenna to steer the radiation pattern [26], [27].…”

Section: Introductionmentioning

confidence: 99%

Pattern reconfigurable dielectric resonator antenna using capacitor loading for internet of things applications

Al-Obaidi

Ghazali

Jawad

et al. 2023

IJECE

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This research study presents a cube dielectric resonator antenna (DRA) with four different radiation patterns for internet of things (IoT) applications. The various radiation patterns are determined by the grounded capacitor loading to reduce interference. The DRA is constructed of ceramic material with a dielectric constant of 30 and is fed via a coaxial probe located in the antenna’s center. Capacitors are used to load the four parasitic microstrip feed lines. Each pattern of radiation is adjustable by adjusting the capacitors loading on the feed line. The proposed antenna works at 3.5 GHz with -10 narrow impedance bandwidth of 74 MHz.

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Pattern-Reconfigurable Dielectric Resonator Antenna With Endfire Beam-Scanning Feature

Cited by 20 publications

References 24 publications

Design of multiband frequency reconfigurable antenna with switchable polarization states

Design of multiband frequency reconfigurable antenna with switchable polarization states

Frequency-Reconfigurable Millimeter-Wave Rectangular Dielectric Resonator Antenna

Pattern reconfigurable dielectric resonator antenna using capacitor loading for internet of things applications

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