periodic antenna
Impedance Characteristics of Log Periodic Antenna
... Log Periodic antenna introduced by DuHamel and Isbell [1] is frequency independent antenna which has a structural geometry such that its impedance is periodic with logarithm of the ...
8
Log Periodic Antenna Design
... Log Periodic Antenna circuit to get substrate thickness, width (W), patch length (L), spacing between m+h and (m+1)th element for scaling factor τ is designed and redesign until get the best optimization ...
24
A Review On UWB Log Periodic Antenna
... log-periodic antenna is among the key components for realizing the UWB ...log-periodic antenna to supply excessive performance is much more challenging than it is when coping with the ...
9
A Single Broadband Antenna The Log Periodic Antenna
... log periodic antenna for a single broadband is to achieve the antenna that commonly using microstrip ...this antenna is also very well suited as a directional-antenna for WLan, WiFi, ...
24
1. A review on uwb microstrip patched log-periodic antenna
... log-periodic antenna is the key add-ons for realizing the UWB ...log-periodic antenna to provide high efficiency is rather more difficult than it is when dealing with the conventional ...
8
Design of Four Arm Log Periodic Antenna for MIMO Applications
... of antenna is 90Ω, such that for the two arm log periodic antenna it can be ...arm antenna size is very high when compared to two arms of a four arm log periodic antenna and the ...
6
0 1 10 THz single port log periodic antenna design based on hilbert graphene artificial magnetic conductor
... log periodic antenna (TLPA) based on Hilbert curvegraphene artificial magnetic conductor (AMC) is proposed for frequency band ...proposed antenna can be tuned by changing the connected DC voltage ...
8
MIMO performance of a planar logarithmically periodic antenna with respect to measured channel matrices
... periodical antenna shown in ...planar antenna type is a self-complementary structure applied on F R4 substrate con- sisting of four orthogonally placed arms as shown in figure ...the antenna and are ...
7
A Broadband Planar Modified Quasi-Yagi Using Log-Periodic Antenna
... quasi-Yagi antenna using a 2-element LPDA antenna with simple microstrip balun has been designed and ...proposed antenna has an improvement of nearly 7% in bandwidth, 2 dB in gain and 13 dB in F/B ...
8
Analysis of Radiation Patterns of Log-Periodic Dipole Array Using Transmission Line Matrix Model
... array antenna using Transmission Line Matrix Model is ...dipole antenna is analyzed using Transmission Line Matrix Model within the frequency band of ...LPDA antenna is produced. Developments on the ...
9
Design and Analysis of Ultra Wide Band log-periodic Planar Dielectric Antenna in Wireless Communications
... log periodic planar antennas is of the form of two arms forming a bowtie and then the spiral dielectric antenna is of the form of two arms forming an angle dependent equiangular structure, whose dimensions ...
6
History and Advancement of the Family of Log Periodic Toothed Planer Microstrip Antenna
... logarithmically periodic antennas structures are studied. The Log-Peri- odic Antenna (LPA) is investigated as a new type of an- tenna, whose properties vary periodically with the loga- rithm of frequency, ...
6
Synthesis and Optimization of Almost Periodic Antennas Using Floquet Modal Analysis and MoM GEC Method
... the antenna arrays, making it one of the most important factors in the choice of the analysis ...in periodic structures changes only by multiplication of a complex constant for a translation by one period ...
16
ABSTRACT : Antenna is the most important element in wireless and wired communications systems. Antenna is one
... log-periodic antenna (LP), also known as a log-periodic array or log-periodic aerial, is a multi-element, directional antenna designed to operate over a wide band of ...log ...
11
Results of the national antenna intercomparison 2017/2018 within the German Calibration Service (Deutscher Kalibrierdienst – DKD)
... dipole antenna (650 MHz–8 GHz) Figure 9 shows the results of the antenna factor mea- surements at PTB for the logarithmic-periodic antenna Schwarzbeck USLP 9142 at the beginning and the end of ...
10
Bandwidth Enhancement of UWB Dual-Polarized Antennas
... (Bowtie Antenna, Toothed Log- Periodic Antenna and Sinuous Antenna) showed interesting conclusions in terms of impedance matching bandwidth and radiation pattern ...small antenna with ...
17
PRS Based Microstrip Antenna for Beam Steering Applications
... steering antenna using a metamaterial – based PRS surface as a sub wavelength cavity as shown in ...the antenna elements so as to steer a beam into a desired direction ...each antenna element, which ...
6
Ultra Wideband Log-periodic Trapezoidal Antenna on K15 LC-Substrate Material
... Figure (2) and (3) shows the return loss and input impedance smith chart for the proposed antenna. A return loss of -18.93, -25.39, -16.15, -18.50 and -24.15 is obtained from figure (2) in the UWB range of 3.8, ...
7
A Printed Log-Periodic Tree-Dipole Antenna (Plptda)
... tree-fractal antenna is lower than that of ...of antenna is determined by both feeding line’s characteristic impedance and the loading dipoles on feeding ...the antenna input impedance to be 50 Ω in ...
14
The Elliptic Gaussian Beam Scattering on Phased Antenna Array with Rectangular Waveguides
... The case of normal incidence of linearly polarized Gaussian beam of elliptic cross-section on the phased antenna array of rectangular waveguides is investigated. The field patterns in a far-field zone of the ...
13