Broadband quasi-Yagi antenna with enhanced radiation pattern for MIMO applications

2013 ◽  
Author(s):  
Chih-Chuan Yen ◽  
Paul Nysen
Keyword(s):  
Radiation Pattern ◽  
Yagi Antenna

scholarly journals Design and Development of a Wideband Planar Yagi Antenna Using Tightly Coupled Directive Element

Micromachines ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 975
Author(s):  
Muhammad A. Ashraf ◽  
Khalid Jamil ◽  
Ahmed Telba ◽  
Mohammed A. Alzabidi ◽  
Abdel Razik Sebak
Keyword(s):  
Reflection Coefficient ◽  
Wireless Communication ◽  
Radiation Pattern ◽  
Excellent Agreement ◽  
Frequency Range ◽  
Fractional Bandwidth ◽  
Yagi Antenna ◽  
Tightly Coupled ◽  
Simulation Results ◽  
Novel Concept

In this paper, a novel concept on the design of a broadband printed Yagi antenna for S-band wireless communication applications is presented. The proposed antenna exhibits a wide bandwidth (more than 48% fractional bandwidth) operating in the frequency range 2.6 GHz–4.3 GHz. This is achieved by employing an elliptically shaped coupled-directive element, which is wider compared with other elements. Compared with the conventional printed Yagi design, the tightly coupled directive element is placed very close (0.019λ to 0.0299λ) to the microstrip-fed dipole arms. The gain performance is enhanced by placing four additional elliptically shaped directive elements towards the electromagnetic field’s direction of propagation. The overall size of the proposed antenna is 60 mm × 140 mm × 1.6 mm. The proposed antenna is fabricated and its characteristics, such as reflection coefficient, radiation pattern, and gain, are compared with simulation results. Excellent agreement between measured and simulation results is observed.

Calculation of the radiation pattern, gain and input impedance of a Yagi antenna

1975 ◽  
Vol 11 (13) ◽  
pp. 282
Author(s):  
P.S. Hall ◽  
B. Chambers ◽  
P.A. Mcinnes
Keyword(s):  
Radiation Pattern ◽  
Input Impedance ◽  
Yagi Antenna

scholarly journals Design and Analysis of a Quasi-Yagi Antenna for an Indoor Location Tracking System

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4246 ◽  
Author(s):  
Sun-Woong Kim ◽  
Sun-Kuk Noh ◽  
Ho-Gyun Yu ◽  
Dong-You Choi
Keyword(s):  
Radiation Pattern ◽  
Standing Wave ◽  
Tracking System ◽  
Performance Comparison ◽  
Moving Target ◽  
Location Tracking ◽  
Directivity Characteristic ◽  
Indoor Location ◽  
Yagi Antenna ◽  
Moving Line

In this paper, a quasi-Yagi antenna for an indoor location tracking system is proposed. The performance of the proposed antenna was verified by testing it using an indoor location tracking system. To improve the bandwidth and gain, two parasitic directors were added near the dipole. The performance verification of the proposed antenna is explained, along with a performance comparison of the VSWR (voltage standing wave ratio) radiation pattern and the realized gain. The proposed antenna was connected to an NVA-R661 module of Xethru Inc. for indoor location tracking. The proposed antenna exhibited a wide bandwidth of 4.36 GHz by satisfying a VSWR ≤ 2 from 5.03 to 9.39 GHz, the maximum gain was 6.46 dBi in the 8 GHz band. The radiation pattern exhibited a good directivity characteristic within the proposed band. The location tracking result of a moving target clearly describes the route of the target along a moving line.

scholarly journals Perancangan Dan Implementasi Antena Yagi 2.4 GHz Pada Aplikasi WIFI (Wireless Fidelity)

2013 ◽  
Vol 1 (1) ◽  
pp. 35
Author(s):  
BUDI PRATAMA ◽  
LITA LIDYAWATI ◽  
ARSYAD RAMADHAN DARLIS
Keyword(s):  
Wireless Communication ◽  
Radiation Pattern ◽  
Access Point ◽  
Communication Technologies ◽  
Limited Range ◽  
Antenna Gain ◽  
Average Increase ◽  
Directional Radiation ◽  
Yagi Antenna ◽  
Focused Beam

ABSTRAKPenggunaan teknologi komunikasi dengan menggunakan kabel kini sudah tergantikan oleh teknologi komunikasi tanpa kabel, dimana kebanyakan pengguna menggunakan perangkat access point yang memiliki jangkauan pancaran terbatas karena pola radiasi omnidirectional, sehingga diperlukan antena yang mempunyai pola radiasi directional untuk jangkauan pancaran yang lebih terarah. Antena yagi merupakan salah satu yang dapat digunakan untuk mengatasi masalah ini. Dalam penelitian ini, antena Yagi yang dirancang dapat diaplikasikan pada sistem WLAN. Hasil dari implementasi didapatkan bahwa antena Yagi dapat bekerja pada frekuensi kerja WLAN 2,4 GHz. Dan selainitudiperoleh level kuat medan dengan rata-rata peningkatan penguatan antena yagi terhadap antena omni sebesar 12,1 dB. Disamping itu diperoleh gain antena yagi sebesar 16 dB sedangkan hasil simulasi sebesar 10 dB, beamwidth vertikal 250 dan horizontal 260, dan bandwidth antena 150 MHz, Pada penelitian ini hasil yang didapatkan dibandingkan dengan hasil dari software vistumbler dan SuperNEC 2.9.Kata kunci: Access point, antenna yagi, directional, vistumbler, 2,4 GHz, SuperNEC 2.9ABSTRACTThe use of communication technologies by using cable technology has now been replaced by wireless communication, whichmost usersuse theaccess point device that has a limited range due to beam omnidirectional radiation pattern, so that the required antenna that has a directional radiation pattern to reach a more focused beam. Yagi antenna is one that can be used to overcome this problem. In this study, Yagi antenna is designed to be applied in WLAN system. Results obtained from the implementations that Yagi antennas can work at the operating frequency of 2.4 GHz WLAN. And besides it is obtained strong level terrain with an average increase of the antenna yagi antenna gain of 12.1dB omni. Besides, obtained yagi antenna gai nof 16 dB, while the simulation result sat 10 dB, 250 vertical and horizontal beamwidth of 260, and a bandwidth of 150 MHz antennas, In this study,the results obtained are compared with the results of the software vistumbler and SupeNEC 2.9.Keywords: Accesspoint, yagi antennas, directional, vistumbler, 2.4 GHz, SuperNEC 2.9

An Expression for the Radiation Pattern of an Infinite Yagi Antenna

1967 ◽  
Vol 23 (5) ◽  
pp. 485-487
Author(s):  
SHIV PRASAD KOSTA ◽  
MURLI DHAR SINGH
Keyword(s):  
Radiation Pattern ◽  
Yagi Antenna

Tridimensional Yagi antenna: shaping radiation pattern with a non-planar array

2010 ◽  
Vol 4 (9) ◽  
pp. 1434 ◽  
Author(s):  
J.R. Brianeze ◽  
A. Cerqueira Sodré ◽  
H.E. Hernández-Figueroa
Keyword(s):  
Radiation Pattern ◽  
Yagi Antenna ◽  
Planar Array
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