Rectangular Dielectric Resonator Antennas

Yaduvanshi, Rajveer S.; Parthasarathy, Harish

doi:10.1007/978-81-322-2500-3

Cited by 76 publications

(36 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Rectangular DRA produce pure modes when excited in isolated condition but grounded DRA with four sequential feeds with single main feed, excites DRA asymmetrically, which gave TE 11δ mode which is confirmed by magnetic field distribution, as shown in Figure A,B, as explained in Ref. . It is also confirmed from Figure C, which were defined by Ref.…”

Section: Design Of the Proposed Drasupporting

confidence: 70%

Novel circularly polarized dielectric resonator antenna for microwave image sensing application

Singhwal

Kanaujia

Singh³

et al. 2019

Micro & Optical Tech Letters

View full text Add to dashboard Cite

In this article, a novel, simple, and compact structure of dielectric resonator antenna is proposed, which provides wide bandwidth across proposed mm wave band for microwave image sensing with considerable gain using a lossy FR‐4 epoxy substrate and thick FR4 as DRA. A DR can be excited using four‐line feed using a circular loop type feed network. These line feeds maintain phase difference of 90° to produce CP. This antenna provides approximate constant gain of 8.6 dB on 25‐26 GHz band and 3 dB axial ratio bandwidth is almost 1 GHz from 25.2 to 26.2 GHz, Impedance bandwidth of the proposed antenna is 3 GHz (24‐27 GHz). This antenna can be used in microwave image sensing and wearable sensors applications, due to its compactness (30 × 30 mm2), in mm wave band.

show abstract

Section: Design Of the Proposed Drasupporting

confidence: 70%

Novel circularly polarized dielectric resonator antenna for microwave image sensing application

Singhwal

Kanaujia

Singh³

et al. 2019

Micro & Optical Tech Letters

View full text Add to dashboard Cite

show abstract

“…The permittivity and electrical resistivity of the carbon fiber are 12 μΩm and 11 μΩm, respectively. The CCFE dimensions are optimized by using a waveguide model for the TE 111 mode . The resonant frequency can be calculated using the relation

((), f_{r}) m, n, p = \frac{c}{2 π \sqrt{ε_{r} μ_{r}}} \sqrt{{(\frac{mπ}{W_{G 2}})}^{2} + {(\frac{nπ}{L_{G 2}})}^{2} + {(\frac{pπ}{(H_{1} + H_{2} + H_{3})})}^{2}}

…”

Section: Design Analysis Of the Antennamentioning

confidence: 99%

Carbon fiber‐based deca‐port multiple‐input‐multiple‐output antenna with pattern diversity and high inter‐element isolation

Mishra

Das

Pattnaik

et al. 2020

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

In this article, a deca-port carbon fiber-based multiple-input-multiple-output (MIMO) antenna with pattern diversity is presented. The radiating elements of the proposed antenna consist of low cost, light weight, environmental friendly graphite material. The 10 radiating elements of the MIMO antenna are arranged in a group of two (termed as sub-MIMO structure), in a cubical manner to cover all the propagating directions. Furthermore, the two carbon fiber-based radiating elements of the sub-MIMO structure are placed in an orthogonal arrangement to generate different radiation patterns. The antenna exhibits high inter-element isolation and low envelope correlation coefficient due to orthogonal placement of the radiating elements. The antenna is fabricated and the measured results confirm that the proposed MIMO/diversity antenna may be useful for vehicle-to-network applications. The MIMO performance parameters such as diversity gain, total active reflection coefficient, mean effective gain, channel capacity loss are evaluated and found within suitable limits. The three-dimensional pattern diversity helps to communicate in all directions.

show abstract

“…The first antennas emerged with the discovery of electromagnetic waves by Hertz in 1888, and since then have developed alongside human civilization, often being a catalyst for its development. A plethora of antennas have been invented in the radio and microwave frequency ranges, including microstrip antennas [2][3][4], reflector antennas [1,5], and dielectric antennas [6,7] to mention just a few. More recently, so-called nanoantennas or antennas operating in the optical frequency range have been invented, which have become irreplaceable elements for quantum optics and communications on a chip [8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Coherently Driven and Superdirective Antennas

Krasnok

2019

Electronics

View full text Add to dashboard Cite

Antennas are crucial elements for wireless technologies, communications and power transfer across the entire spectrum of electromagnetic waves, including radio, microwaves, THz and optics. In this paper, we review our recent achievements in two promising areas: coherently enhanced wireless power transfer (WPT) and superdirective dielectric antennas. We show that the concept of coherently enhanced WPT allows improvement of the antenna receiving efficiency by coherent excitation of the outcoupling waveguide with a backward propagating guided mode with a specific amplitude and phase. Antennas with the superdirectivity effect can increase the WPT system's performance in another way, through tailoring of radiation diagram via engineering antenna multipoles excitation and interference of their radiation. We demonstrate a way to achieve the superdirectivity effect via higher-order multipoles excitation in a subwavelength high-index spherical dielectric resonator supporting electric and magnetic Mie multipoles. Thus, both types of antenna discussed here possess a coherent nature and can be used in modern intelligent antenna systems.

show abstract

Rectangular Dielectric Resonator Antennas

Cited by 76 publications

References 4 publications

Novel circularly polarized dielectric resonator antenna for microwave image sensing application

Novel circularly polarized dielectric resonator antenna for microwave image sensing application

Carbon fiber‐based deca‐port multiple‐input‐multiple‐output antenna with pattern diversity and high inter‐element isolation

Coherently Driven and Superdirective Antennas

Contact Info

Product

Resources

About