Design of Wide-Band Dipole Antenna for Digital TV Broadcasting Application

Broadband printed dipole antenna with integrated balun and tuning element for DTV application

“…The constructed antenna was tested, and its performance was The proposed antenna is compared with other DTV antennas reported in literature in Table 2. The antenna designs in references [6], [7], [23], [24], [26] and [27], in addition to covering the frequency band for digital TV receiver systems also cover frequency bands outside the specified Digital TV band (470-800 MHz) which can cause frequency interference from other transmitters that can degrade the quality of TV signal reception. The operating band of the dipole antenna in [25] falls short for DTV and it has a lower average gain than the proposed antenna.…”

Dipole Antenna With Horn Waveguide for Energy Harvesting in DTV Systems

“…Antenna structure design uses a dipole, an antenna structure to add a quadrilateral stub to both sides of the antenna body [28][29][30][31][32], as shown in Figure 1. It is designed at a mid-range frequency of 650 MHz of the 510-790 MHz frequency range, which has a bandwidth impedance of 75 Ω, on a copper plate with a thickness of the base material of h = 0.02 cm and conductivity of the conductor material σ = 5.8 × 10 7 S/m.…”

“…By studying the current density compared to the wavelength of the antenna, it was found that the region from the input point to the middle of the antenna had the current density that affected the wavelength change the most. The simulation results at low frequency 510 MHz are shown in Figure 2, with constant width W = 23.12 cm, and adjusting only for the lengths from the wavelength 3.8 cm, 4.8 cm, 5.8 cm, 6.8 cm, and 7.8 cm [30]. It was found that the appropriate parameter was L = 5.8 cm.…”

“…In the second part, the technique of increasing the frequency of use range was achieved by adding an I-shaped stub to both sides [29][30][31][32]. By designing in the range of 790 MHz high frequency (W 1 = 0.026λ) and length (L 1 = 0.25λ), as shown in Figure 1(c), study with simulated current density at high frequency of 790 MHz is shown in Figure 3.…”

“…According to the research mentioned, it has the advantage of increasing the efficiency of the gain in energy harvesting, but there are also disadvantages in terms of gain optimization and much complexity with more adjusting points. As a result, the researchers choose disadvantages identified by this research that is the first part of a basic dipole antenna structure [27,28] with an increasing I-shaped stub to widen the frequency [16,[29][30][31][32] and gain enhancement for the antenna by using the horn waveguide [33][34][35] and in terms of getting more energy. The second part studies the matching impedance circuit using a Radial Stub Circuit (RSC) [20,36,37] with the power frequency signal converter circuit by using a full-wave rectifier circuit with a voltage multiplier circuit [16,38,39] to increase the pressure on the rectenna system that is designed to receive power at a frequency of 510-790 MHz, which is the digital TV wireless transmission system.…”