scholarly journals A NOVEL ULTRA-WIDE BAND MAGNETO-ELECTRIC DIPOLE ANTENNA WITH CAVITY REFLECTOR

2016 ◽  
Vol 63 ◽  
pp. 143-152 ◽  
Author(s):  
Neetu ◽  
Ganga Prasad Pandey ◽  
Vivekanand N. Tiwari ◽  
Sarabjot Singh Marwah
Keyword(s):  
Electric Dipole ◽  
Wide Band ◽  
Dipole Antenna ◽  
Ultra Wide Band

scholarly journals A Novel Wideband Magneto-Electric Dipole Antenna with Improved Feeding Structure

2016 ◽  
Vol 5 (2) ◽  
pp. 10
Author(s):  
N. Marwah ◽  
G. P. Pandey ◽  
V. T. ◽  
S. S. Marwah
Keyword(s):  
Radiation Pattern ◽  
Electric Dipole ◽  
Wide Band ◽  
Dipole Antenna ◽  
Ultra Wide Band ◽  
Impedance Bandwidth ◽  
Cross Polarization ◽  
Radiation Patterns ◽  
Feeding Structure

A novel feeding structure in magneto-electric dipole antenna is proposed and analyzed, which is simpler and better in performance than previous designs, involving differential feeding.  Due to this improved feeding structure, the antenna has achieved an impedance bandwidth of 133.3% ( 0.5 GHz – 2.5 GHz, resulting into an ultra-wide band antenna. The maximum broadside gain 7.5dBi with unidirectional radiation pattern has also been reported for the entire the range of operation. Symmetry in E-plane and H-plane radiation patterns has been observed due to the symmetry in structure and excitation of antenna. The antenna has also been able to achieve cross polarization levels.

Design and development of wide band dual-polarized magneto electric dipole antenna for mobile communications

2019 ◽  
Vol 11 (2) ◽  
pp. 175-181 ◽  
Author(s):  
Lakshminarayana Pollayi ◽  
Rama Krishna Dasari ◽  
Vijay M. Pandharipande
Keyword(s):  
Wireless Communications ◽  
Mobile Communications ◽  
Electric Dipole ◽  
Wide Band ◽  
Dipole Antenna ◽  
Simulation Software ◽  
Impedance Bandwidth ◽  
Frequency Range ◽  
High Frequency Structure Simulator ◽  
Dual Polarized

AbstractA shorted magneto electric dipole with orthogonal dual polarization is designed for modern wireless communications. The proposed antenna is a wideband dual-polarized antenna consisting of magneto electric dipoles, which are fed by novel hook-shaped strip feeds. The antenna proposed in this paper is simulated using EM simulation software called high-frequency structure simulator. The simulated and measured results are presented. This antenna achieves 45.4% of impedance bandwidth of −10 dB RL for frequency range from 1.7 to 2.7 GHz. This frequency range covers the wireless communications applications like GSM 1800/1900, WCDMA, Bluetooth, Wi-Fi, etc.

An Optical Antenna Generation Ultra Wide Band by μ-Ring Resonator System

2013 ◽  
Vol 770 ◽  
pp. 382-385
Author(s):  
S. Jurajaturasiraratn ◽  
N. Pornsuwancharoen ◽  
M. Tasakorn
Keyword(s):  
Frequency Domain ◽  
Ring Resonator ◽  
Wide Band ◽  
Chaotic Signal ◽  
Dipole Antenna ◽  
Ultra Wide Band ◽  
Optical Antenna ◽  
Radio Broadcasting ◽  
Resonator System ◽  
Near Future

The optical antenna can be generated high frequency by laser light source from a micro-ring resonator system. The Gaussian pulse into the micro-ring resonator created the chaotic signal with converting the wavelength domain to frequency domain for radio broadcasting. The system designed by varies the micro-ring parameter in the wireless optical antenna. The high frequencies are 3.1 GHz-10.6 GHz for radiation dipole antenna. This system can be conversion from the wavelength domain to frequency domain (GHz) in ultra wide band, which can be application for optical antenna in near future.

scholarly journals Design of Log Periodic Dipole Array (Lpda) with Cross-shape Eaching for Uhf-vhf Application (200-1500mhz) With Band Notch of (800mhz -1000mhz)

2012 ◽  
Vol 9 (2) ◽  
pp. 243-246
Author(s):  
MAHMOUD HEZARI
Keyword(s):  
Transmission Line ◽  
Computer Analysis ◽  
Return Loss ◽  
Wide Band ◽  
Anomalous Behavior ◽  
Dipole Antenna ◽  
Ultra Wide Band ◽  
Shape Design ◽  
Line Resonance

Computer analysis reveals that the anomalous behavior of symmetric Log Periodic Dipole Array (LPDA)Antennahas infloenced by different parameters . The most important is mainly due to the radiation of the dipole elements in the anomalous radiating region which is excited by the transmission line resonance of the feed structure. In the design by changing the element spacing , changes of length of each element in the LPDA antenna and define cross eaching in an boom of an antenna in middle of the specified element the result is the return loss less from 200 MHZ to 1500 MHZ other than the notch between 850 MHZ 950 MHZ according to the simulation results.The log-periodical Dipole Antenna (LPDA) is a kind of ultra wide-band antennas. To achieve the purpose of miniaturization of the LPDA in radiate direction, this paper presents anunusual structure log-periodically loaded with slot cross-shape design.

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