Improving the gain of a notched-type printed dipole indoors antenna using SSFG technique for DTV systems
Year: 2025
Type: article
Abstract: This research aims to study and develop the design of a dipole antenna on a printed circuit board for indoor reception of digital television signals. The proposed design features a relatively simple structure that is easy to construct and applicable compared to other types of antennas. It can be conveniently installed by designing a non-symmetric notch-type dipole antenna, with the dimensions of the antenna being 200 mm in length and 45 mm in width, separated using the SSFG method. The dimensions of the left and right arms of the antenna are adjusted, along with the width of the air gap and the length of the feeder to the antenna, to achieve an operational frequency range between 470 and 862 MHz. The measurement indicates a reflection loss coefficient of -23 dB. Based on using the authorized electromagnetic simulation software CST (Computer Simulation Technology), the researcher designed and analyzed the proposed structure. The simulation results indicated that the antenna exhibited improved matching characteristics. The measurement results showed frequency responses from 463.26 MHz to 875.62 MHz, or 61.6 %, with an S 11 value less than -10 dB. Additionally, the radiation efficiency remains above 60 % across the entire frequency band. The gain at frequencies of 514 MHz, 650 MHz, and 786 MHz was 3.22 dB, 3.88 dB, and 4.35 dB, respectively. You can effectively use the prototype antenna to receive terrestrial digital television signals.
Source: Results in Engineering
Authors: Tanaporn Payommai, Maitree Tamma, Witchupong Wiboonjaroen, Sanchai Ramphueiphad, Apidach Boonjue, Saran Kampeephat
Institution: Rajamangala University of Technology Isan
Language: English
Topic: Antenna Design and Analysis
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,940
OpenAlex ID: W4409786986