Compact dipole antenna with multiple radiation pattern reconfigurations

2015 ◽  
Author(s):  
Y. Juan ◽  
Wenquan Che ◽  
Wanchen Yang ◽  
ZhiNing Chen
Keyword(s):  
Radiation Pattern ◽  
Dipole Antenna

Perbandingan Desain Antena Dipole dan Yagi-Uda Menggunakan Material Aluminium pada Frekuensi 470 – 890 MHz

2017 ◽  
Vol 3 (3) ◽  
pp. 140
Author(s):  
Suci Rahmatia ◽  
Putri Wulandari ◽  
Nurul Khadiko ◽  
Fitria Gani Sulistya
Keyword(s):  
Radiation Pattern ◽  
Daily Activity ◽  
Dipole Antenna ◽  
Antenna Gain ◽  
Communication Tool ◽  
Dipole Antennas ◽  
Gain Bandwidth ◽  
Large Gain ◽  
At Home

<p><em>Abstrak </em><strong> - Antena merupakan alat pemancar yang akrab dengan aktifitas sehari-hari dan mudah sekali dijumpai, di rumah, di gedung, bahkan pada alat komunikasi yang digunakan. Salah satu antena yang sering digunakan adalah antena televisi. Antena televisi yang sering digunakan adalah Yagi-Uda yang biasanya dipakai sebagai outdoor antena dan antena dipole yang biasanya digunakan untuk indoor antena. Masing – masing jenis antena memiliki kriteria dan keuntungan berdasarkan dari kebutuhan penggunaannya. Baik antena dipole maupun antena Yagi-Uda memiliki perbedaan diantaranya adalah besar bandwidth, nilai gain, dan pola radiasi. Pada paper ini dapat diketahui bahwa bandwidth yang dimiliki antena yagi-uda lebih besar daripada antena dipole yakni 0.39943 MHz untuk antena yagi-uda dan 0.16569 MHz untuk antena dipole. Begitupula dengan besar Gain yang dimiliki antena Yagi-Uda (6.64 dBi) lebih besar dibandingkan dengan gain dari antena dipole (2.29 dBi). Perbedaan ini dikarenakan faktor elemen director dan ketebalannya.</strong></p><p><strong><br /></strong></p><p><strong><em>Kata Kunci</em></strong> – <em>Atena Televisi, Atena Yagi-Uda, Atena Dipole, Gain, Bandwidth</em></p><p><em> </em></p><p><em>Abstract</em> <strong>- Antenna is a transmitter tool that is familiar with daily activity and easy to find at home, in the building, even on the communication tool used. One of antenna that is often used is a television antenna. Television antennas are often used is Yagi-Uda which is usually used as an outdoor antenna and dipole antenna that is usually used for indoor antennas. Each type of antenna has the criteria and advantages based on the needs of its use. Both dipole antennas and Yagi-Uda antennas have differences among them are bandwidth, gain, and radiation pattern. In this paper it can be seen that the bandwidth of yagi-uda antenna is bigger than dipole antenna that is 0.39943 MHz for Yagi-Uda antenna and 0.16569 MHz for dipole antenna. Neither the large Gain of the Yagi-Uda antenna (6.64 dBi) is greater than the gain of the dipole antenna (2.29 dBi). This difference is due to element factor of director and its thickness.</strong></p><p><strong><br /></strong></p><p><strong><em>Keywords</em></strong><strong> – </strong><em>Television Antenna, Yagi-Uda Antenna, Dipole Antenna, Gain, Bandwidth</em><strong> </strong></p>

scholarly journals A Planar Reconfigurable Radiation Pattern Dipole Antenna with Reflectors and Directors for Wireless Communication Applications

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Imen Ben Trad ◽  
Jean Marie Floc’h ◽  
Hatem Rmili ◽  
M’hamed Drissi ◽  
Fethi Choubani
Keyword(s):  
Wireless Communication ◽  
Radiation Pattern ◽  
Dipole Antenna ◽  
Radiation Patterns ◽  
Pin Diodes ◽  
Dual Beam

A planar printed dipole antenna with reflectors and directors, able to steer its radiation pattern in different directions, is proposed for telecommunication applications. Starting from a dual-beam printed dipole antenna achieved by combining two elementary dipoles back to back, and by loading four PIN diodes, three modes of reconfigurable radiation patterns are achieved at the frequency 2.56 GHz thanks to switches states. A prototype of the structure was realized and characterized; an efficiency of 75% is obtained. Simulation and measured results of the results are presented and discussed.

A study on dipole antenna having conical radiation pattern with EBG as a reflector

2009 ◽  
Author(s):  
Shohei Hasegawa ◽  
Takenori Yasuzumi ◽  
Tamotsu Suda ◽  
Yasuhiro Kazama ◽  
Osamu Hashimoto
Keyword(s):  
Radiation Pattern ◽  
Dipole Antenna ◽  
Conical Radiation

scholarly journals On the Effect of Metallic Earring on Antenna Performance and SAR at 2.4 & 5.8 GHz

2012 ◽  
Vol 58 (1) ◽  
Author(s):  
M. Z. Anuar ◽  
N. A. Samsuri ◽  
M. K. A. Rahim ◽  
N. A. Elias ◽  
N. Othman
Keyword(s):  
Radiation Pattern ◽  
Human Head ◽  
Dipole Antenna ◽  
Antenna Radiation ◽  
Resonant Frequencies ◽  
Antenna Radiation Pattern ◽  
Antenna Performance ◽  
Close Proximity ◽  
Cst Microwave Studio

This paper presents an investigation on the effect of metallic items on the antenna performance and SAR at 2.4 GHz and 5.8 GHz frequencies. The simulations are performed by means of CST Microwave Studio. The patch dipole antenna is used as the radiating source while the metallic items are modeled as /4 and /2 straight pin-type earrings respectively. The results show that the presence of the head shifted the antenna resonant frequencies and modify the antenna radiation pattern at both investigated frequencies. This study has also indicated that the additional metallic item in close proximity to the head has an additional effect on antenna resonance, albeit quite a small one. However, the straight-pin type earring has significantly increases the amount of energy absorbed in the human head at both frequencies tested.

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