Investigation on Different Forms of Circular Sectored-Dielectric Resonator Antenna for Improvement in Circular Polarization Performance

In this article, a multiband high gain cylindrical dielectric resonator (CDR) integrated with conical horn antenna is reported. This antenna has been designed for multiband wireless frequency applications. To enhance the gain, modified conical‐shaped horn is integrated to the CDR. The proposed antenna resonates at 2.3, 3.5, 3.9, 7.5, 9.2, and 9.95 GHz, respectively. Antenna attains measured 14.1 dBi peak gain at 10.7 GHz resonant frequency. In all the frequency bands, antenna offers more than 80% radiation efficiency. Simulated and experimental results show a commendable agreement. This antenna covers LTE services, Citizens Broadband Radio Service, WiMAX, vehicular communication, cellular communication, and radar applications.

Section: Antenna Design Evolution Processmentioning

confidence: 99%

“…Figure illustrates TM 31δ like mode along x‐y and x‐z plane at 9.2 GHz frequency. The field patterns are in concurrence with the field distribution in …”

Section: Antenna Design Evolution Processmentioning

confidence: 99%

Section: Antenna Design Evolution Processmentioning

confidence: 99%

See 1 more Smart Citation

High gain cylindrical dielectric resonator integrated with horn for multiband wireless applications

Chauhan

Mukherjee

2020

“…In case of half split cylindrical DRAs, (which is proposed case), TM and HE modes are simply grouped as TM for simplification purpose. And similarly, TE and EH grouped as TE in the literature of half split DR antenna and this nomenclature is used throughout this article …”

Section: Antenna Design Procedure and Parametric Studymentioning

confidence: 99%

Electrically coupled dual semicylindrical dielectric resonator antenna with inverted arrangement for wideband applications

Sani

Chowdhury

Chaudhary

2019

Self Cite

In this article, an electrically coupled dual semicylindrical dielectric resonator antenna (SC-DRA) is presented and discussed for wideband applications. The two SC-DRAs are placed in an inverted arrangement and fed by a coaxial probe to excite the fundamental mode TM 11δ and higher order mode TM 21δ . In the proposed design, wideband performance is obtained by combining the fundamental and higher order mode. Proposed wideband antenna is showing simulated and measured input impedance bandwidth (|S 11 | ≤ −10 dB) of 57.94% (3.8-6.9 GHz) and 64.4% (3.38-6.6 GHz), respectively. The far field radiation patterns are found to be consistent and 3-dB beamwidth of 49 and 30 has been achieved at 4.11 and 6.48 GHz, respectively within the working band. This design attains an average gain of 5.65 dBi and radiation efficiency of 97%, respectively. K E Y W O R D S coaxial probe feed, dielectric resonator antenna, wideband antenna

“…Further, Fibonacci series based CDRA & rotated stair shaped DRA, stair shaped DRA with open‐ended ground plane are also investigated. In Reference , proper selection of feed position & height is used for generating orthogonal field in sector of cylindrical DRA, thus generating circular polarization. In Reference , DRA excited by unequal length of cross slot feed placed on offset position of the center, covered 4.7% CP in broadside direction.…”

Section: Introductionmentioning

confidence: 99%

Wideband circular polarized cylindrical segmented dielectric resonator antenna for ISM band applications

Chauhan

Mukherjee

2020

In this article, cylindrical segmented dielectric resonator antenna (CDRA) is proposed for ISM band applications. To obtain the proposed antenna, three different (120°, 60°, and 30°) segments of different cylindrical radius r1, r2, and r3 with stacked angular displacement are used for circular polarization with wideband frequency response. Quadrature phase shift of orthogonal field are observed when segment of cylinder is stacked with specific angular displacement. Various higher order modes are investigated. The simulated and measured impedance bandwidth of the proposed antenna is 90% (3.3 GHz‐8.7 GHz) and 83.4% (3.5 GHz‐8.5 GHz) respectively and the simulated and measured axial ratio bandwidth is 53.8% (3.8 GHz‐6.6 GHz) and 58.5% (3.5 GHz‐6.4 GHz), respectively. Proposed antenna attains 7.1 dBi measured peak gain at 8.5 GHz with more than 80% radiation efficiency in the frequency band. The fabricated prototype is experimentally measured and its results are found to be commensurable with the simulation results.