Beam steered linear array of Cylindrical Dielectric Resonator Antenna

Mishra, Nipun K.; Das, Soma; Vishwakarma, Dinesh Kumar

doi:10.1016/j.aeue.2018.11.011

Cited by 21 publications

(15 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several excitation schemes are used to feed DRA arrays [15], such as series or corporate microstrip lines [16,17], standard rectangular waveguide (RWG) [18][19][20][21], substrate integrated waveguide (SIW) [22][23][24], and dielectric image waveguide (DIG) [25][26][27]. Traditional corporate-feeding networks have a number of power dividers that cause spurious radiation, resulting in high losses [28].…”

Section: Introductionmentioning

confidence: 99%

Standing-Wave Feeding for High-Gain Linear Dielectric Resonator Antenna (DRA) Array

Abdalmalak

Althuwayb

Lee

et al. 2022

Sensors

View full text Add to dashboard Cite

A novel feeding method for linear DRA arrays is presented, illuminating the use of the power divider, transitions, and launchers, and keeping uniform excitation to array elements. This results in a high-gain DRA array with low losses with a design that is simple, compact and inexpensive. The proposed feeding method is based on exciting standing waves using discrete metallic patches in a simple design procedure. Two arrays with two and four DRA elements are presented as a proof of concept, which provide high gains of 12 and 15dBi, respectively, which are close to the theoretical limit based on array theory. The radiation efficiency for both arrays is about 93%, which is equal to the array element efficiency, confirming that the feeding method does not add losses as in the case of standard methods. To facilitate the fabrication process, the entire array structure is 3D-printed, which significantly decreases the complexity of fabrication and alignment. Compared to state-of-the-art feeding techniques, the proposed method provides higher gain and higher efficiency with a smaller electrical size.

show abstract

Section: Introductionmentioning

confidence: 99%

Standing-Wave Feeding for High-Gain Linear Dielectric Resonator Antenna (DRA) Array

Abdalmalak

Althuwayb

Lee

et al. 2022

Sensors

View full text Add to dashboard Cite

show abstract

“…Similarly, cylindrical dielectric resonator (Alumina Ceramic) design achieved 27% bandwidth with 7.95 dB gain between 3.5 GHz and 4.75 GHz frequency band [10]. Literature survey shows that linear four element CDRA (Rogers 3010) has been analysed that gave 500 MHz impedance bandwidth at 7.5 GHz with the gain of 10 dBi in [11]. Rana and Parui presented a paper where a wideband CP antenna using a rectangular dielectric resonator (Eccostock HIK) was designed which responded quite well [12].…”

Section: Introductionmentioning

confidence: 99%

Implementation of Cylindrical Dielectric Resonator Antenna Array for Wi-Fi/Wireless Lan/Satellite Applications

Vahora¹,

Pandya²

2020

PIER M

View full text Add to dashboard Cite

A tri-band Cylindrical Dielectric Resonator Antenna (CDRA) array is proposed for WiFi, wireless LAN, and satellite applications in this paper. CDRA is massively demanded by various smart wireless devices. The claimed antenna array structure is developed and fabricated using an FR4 substrate having relative permittivity (ε r) of 4.4. Microstrip power divider line is utilised for array excitation. The variation in return loss due to the effect of varying microstrip line length, dielectric resonator height, and ground plane height has been carefully recorded and presented using parametric study. The array structure is engineered for triple-band operations working at 2.4 GHz, 4.1 GHz, and 5.4 GHz frequencies. To achieve adequate bandwidth accompanied by acceptable gain is a very inspiring task. The proposed structure shows a promising maximum impedance bandwidth of 1.14 GHz (40%) and a maximum gain of 9 dBi. The return loss and radiation pattern computed through CST software are verified by practical measurements using VNA device and anechoic chamber atmosphere.

show abstract

“…Since World War II, the need for beam steering antenna has been increased in radiating systems [1]. Two main procedures for beam steering are mechanical movement of feed or reflecting surface [2,3] and the electrical steering of phased arrays [4]. There are some defects in both procedures which force us to tolerate among cost, speed, reliability, and other RF component issues [1].…”

Section: Introductionmentioning

confidence: 99%

A Narrow Beam, Beam Steerable and Low Side-Lobe Reflectarray Based on Macro Electro-Mechanical Technique

Asgharian¹,

Zakeri²,

Yazdi³

2020

PIER C

View full text Add to dashboard Cite

In this paper, an X-band, nonuniform and passive beam steering reflectarray antenna is presented. The beam steering is done with a small movement of a large element, i.e., the ground plane. The maximum ±7.5 • beam scanning from the antenna broadside is achieved by only ±0.05λ ground tilting. In the proposed structure, the beam steering capability is provided by using passive elements that eliminate the need for active biased circuits. The linearity of beam scanning as a function of ground tilting is also investigated. Compared to the previous similar works, the antenna's half-power beamwidth and side lobe level are improved by about 9 • and 20 dB, respectively. A primarily proposed reflectarray is fabricated to validate our claim.

show abstract

Beam steered linear array of Cylindrical Dielectric Resonator Antenna

Cited by 21 publications

References 19 publications

Standing-Wave Feeding for High-Gain Linear Dielectric Resonator Antenna (DRA) Array

Standing-Wave Feeding for High-Gain Linear Dielectric Resonator Antenna (DRA) Array

Implementation of Cylindrical Dielectric Resonator Antenna Array for Wi-Fi/Wireless Lan/Satellite Applications

A Narrow Beam, Beam Steerable and Low Side-Lobe Reflectarray Based on Macro Electro-Mechanical Technique

Contact Info

Product

Resources

About