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  2. Reflective array antenna - Wikipedia

    en.wikipedia.org/wiki/Reflective_array_antenna

    This reflective array television antenna consists of eight "bowtie" dipole driven elements mounted in front of a wire screen reflector. The X-shaped dipoles give it a wide bandwidth to cover both the VHF (174–216 MHz) and UHF (470–700 MHz) bands. It has a gain of 5 dB VHF and 12 dB UHF and an 18 dB front-to-back ratio.

  3. Television antenna - Wikipedia

    en.wikipedia.org/wiki/Television_antenna

    A Winegard 68 element VHF/UHF aerial antenna. This common multi-band antenna type uses a UHF Yagi at the front and a VHF log-periodic at the back coupled together. When a higher-gain antenna is needed to achieve adequate reception in suburban or fringe reception areas, an outdoor directional antenna is usually used.

  4. Antenna array - Wikipedia

    en.wikipedia.org/wiki/Antenna_array

    An antenna array (or array antenna) is a set of multiple connected antennas which work together as a single antenna, to transmit or receive radio waves. [ 1 ] : p.149 [ 2 ] The individual antennas (called elements ) are usually connected to a single receiver or transmitter by feedlines that feed the power to the elements in a specific phase ...

  5. Stub (electronics) - Wikipedia

    en.wikipedia.org/wiki/Stub_(electronics)

    Stubs are commonly used in antenna impedance matching circuits, frequency selective filters, and resonant circuits for UHF electronic oscillators and RF amplifiers. Stubs can be constructed with any type of transmission line : parallel conductor line (where they are called Lecher lines ), coaxial cable , stripline , waveguide , and dielectric ...

  6. UHF television broadcasting - Wikipedia

    en.wikipedia.org/wiki/UHF_television_broadcasting

    This mast has two UHF antennas for receiving signals from different directions. The lower antenna is a bowtie array. The upper antenna is a Yagi design. UHF television broadcasting is the use of ultra high frequency (UHF) radio for over-the-air transmission of television signals. UHF frequencies are used for both analog and digital television ...

  7. Radio repeater - Wikipedia

    en.wikipedia.org/wiki/Radio_repeater

    A desirable null exists if the transmit antenna is located exactly below the receive antenna beyond a minimum distance. Almost the same isolation as a low-grade duplexer (about −60 decibels) can be accomplished by installing the transmit antenna below, and along the centerline of, the receive antenna.

  8. Corner reflector antenna - Wikipedia

    en.wikipedia.org/wiki/Corner_reflector_antenna

    Corner reflector UHF TV antenna from 1954 with bowtie dipole driven element. A corner reflector antenna is a type of directional antenna used at VHF and UHF frequencies. [1] [2] It was invented by John D. Kraus in 1938. [3] [4] It consists of a dipole driven element mounted in front of two flat rectangular reflecting screens joined at an angle ...

  9. Antenna diversity - Wikipedia

    en.wikipedia.org/wiki/Antenna_diversity

    Inherently an antenna diversity scheme requires additional hardware and integration versus a single antenna system but due to the commonality of the signal paths a fair amount of circuitry can be shared. Also with the multiple signals there is a greater processing demand placed on the receiver, which can lead to tighter design requirements.

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