Design and build a digital TV receiver double biquad antenna for the Greater Malang region and its surroundings

Many types of antennas can be used for digital TV receivers; in this article we try to design a double biquad antenna. This is due simple form, easy make, wide beamwidth. In designing receiver the Malang area, an STB device needed, so that analog still receive broadcasts. study, antenna made copper wire, each side length: ¼ ? , with working frequency: 650 MHz. order match impedance 75? coaxial cable antenna, balun 4:1 required. The research place Polinema Telecommunications laboratory. test results show lowest return loss (RL) occurs at frequency F=605 MHz, namely RL: -17.8 dB, F=650 magnitude -11.3 dB. large VSWR F: MHz 1.46. So it said has fulfilled parameters, < 2. It means there power less than 10%. largest gain 400 namely: 14.85 dB,. While average 2.21 radiation pattern omni directional. very good use as Greater either without using reflector or reflector.