decrease the size of the antenna [7, 14] and to improve the bandwidth of the antenna [8, 9, 15]. Handset antenna has been reported with wide bandwidth [10]. Half U-slot patch antenna with shorting wall reported in [11] with 28% impedance bandwidth. In this paper, broadband patch antenna with two square slots across its side surface is proposed ... Enhanced-Gain Planar Substrate-Integrated Waveguide Cavity ... High-gain antennas have various applications such as in satellite platforms, radar systems, routers, and repeater systems. A number of enhancement techniques for antenna gain have been studied –.To realize enhanced-gain performance, a cavity-backed slot antenna (CBSA) is employed in this study because of its unidirectional characteristic. Enhancing the Bandwidth of a Microstrip Patch Antenna ... Keywords: - bandwidth, dielectric constant, microstrip antenna, slot patch, substrate I. INTRODUCTION Communication can be broadly defined as the transfer of information from one point to another [1]. Communication between human beings was first done through voice. With the desire to increase the distance of
A fractal cross slot broad band antenna comprises a five layer configuration including a radiating fractal cross slot layer having a plurality of antennas each comprising a plurality of radiating arms.
Rhombic antenna - Wikipedia A rhombic antenna is a broadband directional wire antenna co-invented by Edmond Bruce [1] and Harald Friis, [2] [3] in 1931, mostly commonly used in the high frequency (HF) or shortwave band. J-pole antenna - Wikipedia The J-pole antenna, more properly known as the J antenna, [1] was first invented by Hans Beggerow in 1909 for use in Zeppelin airships. [2] Trailed behind the airship, it consisted of a single element, one half wavelength long radiator with … Parabolic antenna - Wikipedia The angular width of the beam radiated by high-gain antennas is measured by the half-power beam width (HPBW), which is the angular separation between the points on the antenna radiation pattern at which the power drops to one-half (-3 dB …
Figure 1. Rectangular Slot antenna with dimensions a and b. To gain an intuition about slot antennas, first we'll learn Babinet's principle (put into antenna terms by H. G. Booker in 1946). This principle relates the radiated fields and impedance of an aperture or slot antenna to that of the field of its dual antenna. The dual of a slot antenna would be if the conductive material and air were interchanged - that is, the …
Abstract. This paper proposes a low profile, novel Taper Slotted Antenna (TSA) with manifold slots of Leaf shaped slots in order to improve the gain of a ... DESIGN AND CHARACTERIZATION OF CIRCULARLY ... - CiteSeerX This thesis work is aimed to address improve on all those limitations. In order ..... gain. The back radiation of a slot antenna can affect the circuitry inside if the slot ... Broadband Slotted Coaxial Broadcast Antenna Technology - Dielectric Slotted coaxial antennas have many advantages over traditional broadband panel antennas ... methods to increase the bandwidth of slotted coaxial antennas. .... As is seen in Figure 14, the expected gain in bandwidth will improve between. Directional antenna - Wikipedia A directional antenna or beam antenna is an antenna which radiates or receives greater power in specific directions allowing increased performance and reduced interference from unwanted sources. Directional antennas provide increased performance over dipole ... A high-gain antenna (HGA) is a directional antenna with a focused, narrow ...
Reconfigurable high Gain split Ring Resonator Microstrip Patch Antenna
This paper presents a printed wide-slot antenna design and prototyping on available low-cost polymer resin composite material fed by a microstrip line with a rotated square slot for bandwidth enhancement and defected ground structure for gain enhancement. An Effect of antenna size on gain, bandwidth, and efficiency
Characteristics of Double Exponentially Tapered Slot Antenna ...
Microstrip antenna has various applications because it have various advantages as to conventional antenna.But the biggest disadvantages is that it has very narrow bandwidth and low gain.and these are the subject for new research as well the requirement of Maximizing Gain of a Compact UWB Tapered Slot Antenna
Mar 28, 2019 ... The slot antenna has wideband impedance, but the 3 dB axial ratio .... the CP wave and increase the antenna gain, as shown in Figure 1b. Use of Slots to Improve Performance of Patch in Terms of Gain and ... Feb 5, 2015 ... Abstract—From last decade, the use of slots is generally associ- ated with widening the bandwidth of the patch antenna. In this letter, a set of ...