of microstrip antenna arrays. These array antennas have many unique features which are very important for airborne or space-craft applications!·7. In this paper, an analysis of a four-element linear array of microstrip annular ring slot antenna (MARSA) is presented at 9 GHz of microwave frequency range. The far-zone field expressions of A low-frequency annular-slot antenna - NIST Page A Low-Frequency Annular-Slot Antenna James R. W ait The radiation characteristics of an annular slot cut in an ideally conducting ground plane are discussed. The voltage impressed between the concentric edges is assumed to be constant around the slot. The annular slot is backed by a hemispherical cavity which has A Circularly Polarized Annular-ring Patch Antenna with a ... a circularly polarized annular-ring patch antenna embedded in a particular EBG structure and with an unequal cross-slot in the ground plane is studied and presented. This recently proposed annular-ring antenna structure has been shown to be significantly smaller than conventional annular-ring patch antennas, even on standard groundplanes [10]. DESIGN OF RECONFIGURABLE ANNULAR SLOT ANTENNA (ASA) FOR ...
given values of the miace impedance Z, the radius of the annular ring, and the racliu of the hemispherical cavity. uch an antenna migb t be feasible even at low radiofrequencies. In this case, the cavity could be a canyon, gorge, or ditch. Using a system of wires tretched between ... A low-frequency annular-slot antenna ...
A conventional slot ring without a grounded dielectric will radiate at a frequency determined by the guided wavelength of the slot. That is, an annular slot antenna will radiate its fundamental mode at a slot radius of [2] Annular Slot Loaded High-Impedance Ground Plane A Circularly Polarized Annular-ring Patch Antenna with a ... a circularly polarized annular-ring patch antenna embedded in a particular EBG structure and with an unequal cross-slot in the ground plane is studied and presented. This recently proposed annular-ring antenna structure has been shown to be significantly smaller than conventional annular-ring patch antennas, even on standard groundplanes [10]. A Compact Annular Ring Microstrip Antenna for WSN Applications
Wideband annular ring slot microstrip antenna with low ...
An annular slot antenna includes an inner conductor divided by a dielectric gap into a rear section and a front section. An inner conductor of a coaxial feed line is ... Microstrip annular ring slot antenna; for mobile ... Microstrip annular ring slot antenna; for mobile applications J.C. Batchelor and R.J. Langley Indexing terms: Microstrip antennas, Antennas, Mobile communication systems Compar S trip Patch ison of everal Novel Annular ... Antennas for Circular Polarization ... annular-ring antennas loaded by a strip and slots ... Design of An Annular-Ring Microstrip Antenna for Circular Polarization,
A Novel Concentric Annular-Ring Slot Dual-Band Circularly ...
The antenna consists of a pair of rotated square split ring resonators (SRR) inside a rectangular slot etched on the ground plane of an FR-4 dielectric substrate. Dual-Band Antennas Research Papers - Academia.edu The structure of the proposed antenna is based on the Koch snowflake fractal geometry of the third iteration as applied to the outer and inner perimeters of an annular ring slot configuration.
Abstract— A novel single-layer, microstrip-to- slotline transition technique for coupling a circularly polarized annular-ring slot antenna in
An annular slot on triplate feed is discussed which is suitable for use with vehicular mobile satellite systems. The slot is excited in a higher order mode and ... Compact size annular-ring slot antenna with broad circularly polarized ...
Bandwidth enhancement of L-probe proximity-fed annular ring ... Bandwidth Enhancement of L-Probe Proximity-Fed Annular Ring Microstrip Slot Antenna A. K. Singh, (Research Scholar) Ravi Kumar Gangwar Binod K. Kanaujia Electronics Engineering, Electronics Engineering, Electronics and Commn. Annular Ring Patch Antenna for Wearable Applications Annular ring microstrip antenna is an alternat[3] to standard e rectangular and circular microstrip antennas. The main advantage of annular ring geometry over other microstrip antenna geometries is that for operation at a given frequency in the fundamental mode, the annular ring antenna occupies the smallest physical area.