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In this paper, simulation study of single-sided castor leaf-shaped quasi-self-complementary antenna with dual band-rejection characteristics is presented for broadband applications. It provides broad impedance bandwidth of (2.2–13.0 GHz) which covers ultrawideband (UWB) spectrum and Bluetooth spectrums. Two different quarter-wavelength long resonators are used to reject overlapping WiMAX (3.3–3.8...
This paper presents the simulation study of a castor leaf-shaped quasi-self-complementary antenna for broadband applications. The optimal design of proposed antenna provides −10 dB reflection coefficient bandwidth of 2–12 GHz. It is fed with 50 Ω coplanar waveguide (CPW) with in-built matching circuit. The antenna provides directive radiation pattern along with average gain value of 4.36 dB and more...
A filleted rectangular dielectric resonator antenna (FRDRA) is described in this paper. The antenna consists of Teflon (εr = 2.1) as lower segment and 10 wt% of glass (PbOBaO-B2O3-SiO2) sintered Barium Strontium Titanate (BST) namely BSTG10 (εr = 27) as upper segment. Glass was added to lower the sintering temperature from 1050 °C to 800 °C and increase the permittivity of BST. The FRDRA provides...
The simulation and experimental studies of a probe-fed dual segment cylindrical dielectric resonator antenna with metamaterial superstrate are presented in this paper. The antenna consists of a ceramic material (SrLa2Mg2W2O12) of dielectric constant εr = 22 and loss tangent tan δ = 0.0021 acting as upper segment and commercially available Teflon having dielectric constant of 2.1 acting as lower segment...
In this paper, an ultra-thin LC resonator structure operating in X-band is designed which is intended to be used as a shield to reduce the radar cross section of a conducting plate. The proposed structure is simulated using Ansoft HFSS software which shows an absorption peak at 8.125 GHz with reflection coefficient of -34.2 dB. The LC structure constructed from resistive/low conductivity material...
The study of a compact aperture-coupled wideband dual segment rectangular dielectric resonator antenna (RDRA) with metamaterial for C-band applications are presented in this paper. The simulation study of the antenna is carried out using Ansoft's HFSS software. With the use of metamaterial superstrate, the bandwidth of the antenna is increased by 48 % through simulation. The broadside radiation pattern...
The simulation and experimental studies of a compact dual segment cylindrical dielectric resonator antenna (DRA) for X-band applications are presented in this paper. The antenna consists of Teflon (εr = 2.1) as lower segment and ceramic material (Sr La2 Mg2 W2 O12) of dielectric constant εr = 22 and loss tangent tan δ = 0.0021 as upper segment. The simulation study of the antenna is carried out using...
A wideband (4.94-6.959 GHz) four element rectangular dielectric resonator antenna array has been designed for 5.0 GHz WLAN and WiMAX band and its radiation characteristics determined through simulation studies using CST Microwave Studio software. Further, simulation results for power absorption in a homogenous bio-medium (muscle layer) in direct contact with the proposed antenna array is presented...
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