cavity-backed slot radiator
CPW-fed cavity-backed slot radiator loaded with an AMC reector
... the cavity structure, which contribute towards high sidelobes and a high backlobe in the radiation ...lateral cavity dimensions (for a specific value of ...the slot is removed from the top conducting ...
11
Circularly Polarized Substrate Integrated Waveguide Cavity-Backed Antenna with Enhanced Bandwidth for Wideband Wireless Applications
... patch radiator is fed by an inverted-T stripline protruded into the SIW cavity, and they are connected by a metallic via with a radius of R 5 ...rectangular slot of W 7 × L 6 (5 ...ring slot ...
9
Dual Circularly Polarized Substrate Integrated Waveguide Cavity-Backed Antenna with Enhanced Bandwidth and Reduced Size for Wideband Wireless Applications
... ring slot is much smaller than the substrate thickness, the effect of the RPPTL can be ...ring slot results in merely a simple capacitor compensating for the probe ...ring slot can be seen as a ...
10
A Novel Cavity Backed Monopole Antenna with UWB Unidirectional Radiation
... monopole radiator backed with a compact rectangular metallic ...a slot on the patch — to improve the gain bandwidth of the omnidirectional antenna at higher frequencies; furthermore, we design a ...
13
Miniaturized Cavity Backed Substrate Integrated Waveguide Antenna for Ku Band Application
... Figure 6(a) shows the axial ratio which shows that the antenna being horizontally polarized whereas figure 6(b) and 6(c) shows the current distribution through the structure and the rectangular slot respectively. ...
5
Far-Field Symmetry Analysis and Improvement of the Cavity Backed Planar Spiral Antenna
... a cavity behind the spiral ...the cavity, some high order radiation modes [6] can be activated and the semi-closed cavity resonant modes can be activated ...the cavity with the absorber ...a ...
8
Development of Cavity Backed U-Shaped Cross Dipole Antenna with Reconfigurable Characteristics
... [13] Al-Jihouri, B. H., Evans, Korolkiewicz, E., Lim, E. G., Sambell, A., and Viasits, T., “Cavity model of circularly polarized cross- aperture-coupled microstrip antenna”, Pro. IEE Microwave, Antennas & Wave ...
6
Planar Cavity-Backed Self-Diplexing Antenna Using Two-Layered Structure
... (HMSIW) cavity-backed self- diplexing antenna is proposed with a two-layer ...corresponding cavity in its dominant mode, which resonates at two different frequencies in x ...corresponding ...
6
Modeling and Simulation of Dual Cavity based Tapered Slot Antenna
... ABSTRACT: In this work, a microstrip feedline based tapered slot antenna with a pair of cavities is simulated and studied. The proposed antenna is designed to evaluate the effect of cavities on both sides of the ...
6
Waveguide Coupled Microstrip Patch Antenna a New Approach for Broad Band Antenna
... rectangular slot which resembles an iris type radiator proposed by Slatter [2], so for further study this pattern is retained, and the systematic study is performed on this type of waveguide coupled ...
7
Wideband Circular Polarization Cavitay-Backed Slot Antenna for GNSS Applications
... Figure 1 shows the configuration of the proposed antenna. Four centrosymmetric dumbbell-shaped slots are etched on the backside of an RO4003 PCB with dielectric constant of 3.38 and substrate thickness of 0.813 mm. The ...
6
Tappered Spiral Helix Antenna
... Electronic warfare systems require antenna having wide bandwidth capable of receiving signals coming from any direction with any polarization in the absence of prior information about the threat signal. The requirements ...
8
Design of CPW-Fed Slot Antenna with Rhombus Patch for IoT Applications
... CPW-fed slot antenna with rhombus patch radiator is proposed for ...patch radiator with a tuning stub in the feeding structure is embedded to form the proposed slot ...pentagon slot and ...
9
A Compact Wideband Slot Antenna for Universal UHF RFID Reader
... square slot antenna for universal UHF RFID reader applications is proposed and ...L-shaped radiator at lower surface of the substrate is used to feed the proposed ...square slot at the upper surface ...
8
Surface tension effect on sound absorption characteristics of a cavity backed semi permeable membrane
... Effect on the Sound Absorption Coefficient, α. Fig. 3(a)-(e) shows the effect of the membrane surface tension on the Sound Absorption Coefficient, α. Increasing the membrane surface tension make the sound absorption ...
5
Design and Development of High Gain, Low Profile and Circularly Polarized Cavity-backed Slot Antennas Using High-order Modes of Square Shaped Substrtae Integrated Waveguide Resonator
... The measured results show that, reflection coefficient is below -10 dB from 12.39 GHz to 12.95 GHz, corresponding to 560 MHz impedance bandwidth. This means that the measured fractional impedance bandwidth is 4.42 %. The ...
8
A Reflectarray Based on the Folded Sir Patch-Slot Configuration Backed on FSS for Low RCS
... antennas backed on the folded SIR FSS ground and a conventional ground are designed and ...element backed either by a solid ground plane or a band-stop FSS structure is ...counterpart backed by a ...
6
Effect of membrane surface tension and backed air gap distance on sound absorption characteristics
... absorbers, cavity absorbers and membrane ...2010). Cavity absorbers, also known as Helmholtz absorbers are simply air containers with a narrow ...the cavity has a vacuum effect at the particular ...
5
Diffraction of Hybrid Modes in a Cylindrical Cavity Resonator by a Transverse Circular Slot with a Plane Anisotropic Dielectric Layer
... a slot, modifying the methods using for modeling of empty slotted systems (see, for example, ...cylindrical cavity resonator with a transverse annular slot and a plane infinite dielectric, passing ...
22
Differential Fed Ultra-Wideband Multiple-Mode Antenna Using Uniform Narrow Slot Radiator
... straight slot, in which the first two or more resonances are merged to form a continuous wide radiation ...1D radiator, the electromagnetic field distributes along one direction, brings convenience in mode ...
6