half wave slot antennas
Resonant Length Formulations for Dual Band Slot Cut Equilateral Triangular Microstrip Antennas
... the slot frequencies for U-slot or rectan- gular slots cut dual band ETMSAs, calculated by using their half wave or quarter wave length approximations are compared with the simulated ...
9
Analysis of Broadband Slot Cut Semi Circular Microstrip Antennas
... cutting slot inside the patch. While designing slot cut antennas at a given frequency, slot length is taken to be either quarter wave or half wave in ...of slot ...
6
Half-Arrow Slot Antenna for Inter-Satellite Communications
... small antennas that provide high gain and do not obstruct the solar panels ...of antennas for inter-satellite communications, which have the advantages of high power capacity, reduced size, and easy ...
8
Design and Realization of Circular Polarized SIW Slot Array Antenna for Cubesat Intersatellite Links
... [23], half-mode substrate integrated waveguide (HMSIW) [24], an SIW-based hat- shaped dielectric loaded antipodal linear tapered slot antenna (ALTSA) proposed and realized in [25], and leakage antenna ...
8
Modified Square Slot Antennas for Broadband Circular Polarization
... modified slot antenna designs, slot antenna has the inherent disadvantage of bidirectional radiation ...the slot antenna is placed above another object, the antenna performances including impedance ...
14
Resistor Loaded EBG Surfaces for Slot Antenna Design
... R Based on these values, a plot of the imped- ance vs. frequency is given in Figure 2. As seen, the resonance frequency of the unloaded EBG structure is 5.89 GHz (using the circuit model). Of importance is that the ...
6
Miniaturization of a PIFA Antenna for Biomedical Applications Using Artificial Neural Networks
... In this paper, the starting geometry considered is a PIFA structure presented in [18] but modified for the goal of dual-band operation and size miniaturization. The paper is organized as follows. In Section 2, the design ...
10
A Compact Broadband Slot Antenna for Indoor Distributed Antenna Systems
... broadband slot antenna for indoor distributed antenna systems is ...polygon slot in the circular ground plane on the other ...wideband slot structure, the antenna achieves small electrical dimension ...
7
Study on the Planar Circularly Polarized Antennas with Swastika Slot
... two antennas in all the points measured, which verifies that reducing the unrelated linear polarization, especially from the center of the circularly polarized patch, is a good method to improve the performance of ...
14
Study of Half wave Rectifiers
... This paper represents the study of Half wave Rectifier of single phase AC to DC converter. Performances and outputs have analyzed depending on the equations. Different parameters such as voltage gain, ...
5
Study of CPW-Fed Slot Antenna for UWB Application
... UWB antennas especially on PCB or ceramic. The antennas with low profile are easy to be integrated into other RF circuits on the PCB or embedded into small and portable ...
5
A Broadband Circularly Polarized Antenna Fed by Horizontal L-Shaped Strip
... heights is studied as shown in Figure 4. It can be seen from Figure 4 that thicker air layer brings wider AR bandwidth and lower AR minimum value. However, narrower impedance bandwidth is obtained for higher substrate ...
10
CPW-Fed Octagon Shaped Ring Slot Monopole Antenna
... Abstract: The octagonal ring-shaped antenna for CPW and Microstrip fed is provided for wideband service. The radiating area of the planned octagonal ring antenna is asymmetrical slot instead of a traditional ring ...
11
Multiband Slot Antennas for Metal Back Cover Mobile Handsets
... back cover should be introduced by pogo pins and even a double- sided adhesive conductive tape between the shielding cans on the PCB and the back cover. Both simulated and measured results show good −6 dB performance of ...
12
On the Design of Slot Cut Circularly Polarized Circular Microstrip Antennas
... As the slot cut CP CMSA is optimized on lossy substrate, the gain is less than 0 dBi. To improve the same, its three layer suspended configuration is proposed as shown in Figure 3(a) and Figure 3(b). The two ...
12
Microstrip Open-Slot Antenna with Wideband Dual-Frequency and Dual-Sense Circular Polarization
... F-shaped slot which is rotated 90 ◦ anticlockwise is applied to the right side of the cross slot resulting in an additional resonance at about ...L-shaped slot is embedded in the upper left side of ...
10
Circularly Polarized Patch Antenna with Frequency Reconfiguration
... Here varactor diodes act as switch. When the varactor diode is on state, it will be equivalence to a series combination of capacitor and resister of capacitance 0.6pf and resistance 0.8ohm respectively and in off state ...
5
Circularly Polarized Broadband Antenna with Circular Slot on Circular Groundplane
... broadband antennas should provide broad- band characteristics in input impedance, axial ratio (AR) and gain ...characteristics. Slot antennas with large radiating aperture provide wider bandwidth ...
13
STUDY AND DESIGN OF SINGLE SLOT AND DUAL SLOT PIFA ANTENNAS
... a slot on the PCB structure causes an alteration of the surface current ...distribution. Slot #1 is de-signed and placed to force a longer electrical path at low frequencies; thus, the resonant frequency of ...
6
Active Slot-Ring Antennas as a Receivers
... of 29 MHz, that is very large compared to Active microstrip patch antenna [6]. With the present system configuration demodulation bandwidth in excess of 2.0 MHz is realizable which can successfully accommodate quite a ...
10