Minimizing yagi-uda radiosonde receiver antenna size using minkowski curve fractal model

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地球科学;经济学

Sani, Arman^1 ; Suherman, S.^1

Electrical Engineering Department, Faculty of Engineering, Universitas Sumatera Utara, Medan, Indonesia^1

关键词: Antenna design;    Characteristic impedance;    Curve modeling;    Earth stations;    Physical dimensions;    Receiver antennas;    Yagi-Uda antenna design;    Yagi-Uda antennas;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/126/1/012045/pdf
DOI  :  10.1088/1755-1315/126/1/012045

来源: IOP

【 摘 要 】

This paper discusses Yagi-Uda antenna design for radiosonde earth station receiver. The design was performed by using Minkowski curve fractal model to reduce physical dimension. The antenna design should fulfil the following requirements: work on frequency of 433MHz, match to the 50 Ohm of radiosonde characteristic impedance, the expected gain is higher than 10 dBi, VSWR is smaller than 2 and the expected bandwidth is higher than 10 MHz. Antenna design and evaluation were conducted by using MMANA-GAL simulator. The evaluation of the designed antenna shows that the Yagi-Uda antenna designed by using Minkowski curve model successfully reduces antenna size up to 9.41% and reduces number of elements about 33%.