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Broadband TV Antenna Design

The simple broadband TV antenna works at the 580- 760- MHz. Passband of the antenna is 180- MHz. Antenna has input impedance 300- Ohm at the pass band. 
The Design also can modified from  Band frequency 470-806 and with impedance 50 Ohm.

Antenna may be used with antenna amplifier that has such input impedance. Antenna may be used with coaxial cable with broadband transformer. The antenna is critical to any nearby metal subjects. Place the antenna with isolator connected to Antenna body and tower or antenna holder.

They can destroy the DD of the antenna. Space in 50 cm near the antenna should be free from such metal or conductive subjects. If antenna is used for reception purposes the best way is place low noise amplifier at the antenna terminal. 
LNA or Low Noise Amplifier can be made with 2SC3358 or 2SC3355, Low Noise Wideband Amplifier 0 - 1 GHz





Figure 1 shows view of the antenna. Figure 2 shows design of the antenna. Figure 3 shows impedance of the antenna (antenna placed at 7- meter above the real ground). Figure 4 shows SWR of the antenna (antenna placed at 7- meter above the real ground). Figure 5 shows DD of the antenna (antenna placed at 7- meter above the real ground). The MMANA model of the Broadband TV Antenna may be loaded: http: // www.antentop.org/018/ur0gt_tv_018.htm (Source : Antentop with modification in content)

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