scholarly journals Microstrip Bandwidth Enhancement Using Log Periodic Technique with Inset Feed

2012 ◽  
Author(s):  
Mohamad Kamal A. Rahim ◽  
Peter Gardner
Keyword(s):  
Key Words ◽  
Microstrip Antenna ◽  
Dipole Antenna ◽  
Bandwidth Enhancement ◽  
Wideband Antenna ◽  
Log Periodic Antenna ◽  
Element Array

Ketas kerja ini menerangkan berbagai teknik untuk memperbaiki lebar jalur antena mikrojalur. Salah satu teknik yang dibincangkan secara khusus adalah teknik log periodik. Reka bentuk, penyelakuan dan fabrikasi antena log periodik dengan cara suapan inset telah dibincangkan. Antena telah direka bentuk dengan tatasusunan sebelas unsur. Prestasi antena tersebut dikaji dari segi lebar jalur, gandaan relatif kepada antenna dwikutub, pemencilan kutub silang dan lebar alur. Kata kunci: Antena mikrojalur, antena log periodik, antena jalur lebar, lebar jalur, gandaan This paper describes the various techniques to improve the bandwidth of a microstrip antenna. One of the techniques that has been discussed in detail is the log periodic technique. The design, simulation, and fabrication of log periodic antenna (LPA) with inset feed method has been discussed. The antenna has been designed with eleven element array. The performance of the antenna has been investigated in terms of bandwidth, gain relative to a dipole antenna, cross–polar isolation, and beamwidth. Key words: Microstrip antenna, log periodic antenna, wideband antenna, bandwidth, gain

Active Log Periodic Antenna

2012 ◽  
Author(s):  
Mohamad Kamal A. Rahim
Keyword(s):  
Key Words ◽  
Microstrip Antenna ◽  
Active Devices ◽  
Feed Line ◽  
The Third ◽  
Five Elements ◽  
Log Periodic Antenna ◽  
The Individual ◽  
Half Power ◽  
Integrated Antenna

This paper describes four different configurations of active devices integration into log periodic antennas (LPAs). The first configuration involves the integration of a single amplifier at the input feed line of a five element log periodic antenna (LPA). The second configuration involves the integration of an amplifier in the middle of the five elements LPA. The third configuration is the five element LPA with individual amplifiers in each element. The last configuration involves the integration of the individual amplifiers and filters with five element LPA in each element. The performance of these configurations have been investigated and compared in terms of the bandwidth, gain relative to a passive LPA, cross polar isolation and half power beamwidth. Key words: Log periodic antenna, active integrated antenna, microstrip antenna, wideband antenna

scholarly journals A COMPACT CIRCULARLY POLARIZED MICROSTRIP ANTENNA WITH BANDWIDTH ENHANCEMENT

2016 ◽  
Vol 61 ◽  
pp. 85-89
Author(s):  
Lumei Li ◽  
Jianxing Li ◽  
Bin He ◽  
Songlin Zhang ◽  
Anxue Zhang
Keyword(s):  
Microstrip Antenna ◽  
Bandwidth Enhancement ◽  
Circularly Polarized

scholarly journals Printed dipole antenna and its arrays for wireless applications

2018 ◽  
Vol 7 (2.7) ◽  
pp. 952
Author(s):  
V Teju ◽  
P V. P. S Nikhil ◽  
A Pranusha ◽  
Ch Divya ◽  
G Bhanuprakash
Keyword(s):  
Reflection Loss ◽  
Mutual Coupling ◽  
Dipole Antenna ◽  
Wide Frequency Range ◽  
Single Element ◽  
Frequency Range ◽  
Scanning Angle ◽  
Wireless Applications ◽  
Element Array

This paper proposes single element of micro-stripe antenna having wider bandwidth and also its arrays which are implemented for wire-less applications. In contemplation of wide frequency range of operation, antenna is fed with integrated balun. The single element antenna works under frequency range of 34GHz to 46GHz where reflection loss is less than -10dB and the obtained gain is 2.1 dBi. The linear 8-element array of antenna has been implemented and to obtain low mutual coupling between the elements of antenna a rectangular stub has been implemented. By enforcing the array methodology the not only the overall gain of the antenna has increased but also results in wider scanning angle.  

scholarly journals Bandwidth Enhancement of Symmetrical Fourth-Teeth-Shaped Microstrip Antenna

Helix ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 2275-2283 ◽  
Author(s):  
Angelina G. Markina ◽  
Keyword(s):  
Microstrip Antenna ◽  
Bandwidth Enhancement

Bandwidth enhancement and cross-polarization suppression in ultrawideband microstrip antenna with defected ground plane

2014 ◽  
Vol 56 (9) ◽  
pp. 2141-2146 ◽  
Author(s):  
Mukesh Kumar Khandelwal ◽  
Binod Kumar Kanaujia ◽  
Santanu Dwari ◽  
Sachin Kumar ◽  
A. K. Gautam
Keyword(s):  
Microstrip Antenna ◽  
Ground Plane ◽  
Cross Polarization ◽  
Bandwidth Enhancement ◽  
Defected Ground Plane

Bandwidth Enhancement of Metamaterial Loaded Microstrip Antenna using Double Layered Substrate

2017 ◽  
Vol 5 (3) ◽  
pp. 661 ◽  
Author(s):  
V. Srinivasa Rao ◽  
K.V.V.S. Reddy ◽  
A.M. Prasad
Keyword(s):  
Resonant Frequency ◽  
Rapid Growth ◽  
Patch Antenna ◽  
Microstrip Antenna ◽  
Return Loss ◽  
Daily Life ◽  
High Gain ◽  
Metamaterial Structure ◽  
Bandwidth Enhancement ◽  
Layered Substrate

<p class="Abstract">Communication has become a key aspect of our daily life, becoming increasingly portable and mobile. This would need the use of micro strip antennas. The rapid growth has led to the need of antennas with smaller size, increased bandwidth and high gain. In this paper, a new version of micro strip patch antenna is designed by adopting double layered substrate concept and adding a layer of metamaterial structure to a square micro strip antenna. The antenna properties gain, return loss and bandwidth are studied to achieve better performance. The designed patch antenna has an improved bandwidth of 60% at a resonant frequency of 2.47 GHz. This antenna is designed and simulated by using HFSS software.</p>

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