| 31. | RDF systems using mechanically swung loop or dipole antennas were common by the turn of the 20th century.
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| 32. | Several types of balun are commonly used to feed a dipole antenna : current baluns and coax baluns.
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| 33. | Twin-lead also can serve as a convenient material with which to build a simple folded dipole antenna.
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| 34. | Simple half-wave dipole antenna for VHF or UHF loop antennas that are made to be placed receiver.
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| 35. | The earliest research in metamaterial antennas was an analytical study of a miniature dipole antenna surrounded with a metamaterial.
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| 36. | Four dipole antennas were mounted on orthogonal arms, and the shelter and antennas rotated to scan in azimuth.
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| 37. | According to half-wavelength dipole antenna for signals in the range of 50 m wavelength, about 6 MHz.
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| 38. | Adcock & mdash; who was serving as an Army officer in the monopole or dipole antennas of equal length.
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| 39. | In 2009, the Millennium Transmitter increased its height to 720 feet and was also reinforced with powerful dipole antennas.
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| 40. | The NASA rectenna was made of a thin plastic film, with dipole antennas and receiving circuits embedded in its surface.
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