periodic antenna

periodic antenna

[¦pir·ē¦äd·ik an′ten·ə]
(electromagnetism)
An antenna in which the input impedance varies as the frequency is altered.
References in periodicals archive ?
The new system uses an antenna which is highly directional "Wide Aperture Log Periodic Antenna Array [LPDA]" system.
Tenders are invited for Supply of broadband log periodic antenna
Using this property, a frequency reconfigurable log periodic antenna is proposed.
Chang, "Application of quasi log- periodic antenna for UHF passive RFID tag design featuring constant power transmission coefficient over broadband operation," Journal of Electromagnetic Waves and Applications, Vol.
The source is a linearly polarized, log periodic antenna that operates from 500 MHz to 12.
The Model ATR26M6G-1 is a 26-MHz to 6-GHz, 5,000-W wideband, high-gain radiant arrow/log periodic antenna with the proprietary bent-element design.
The Radiant Arrow 80 [TM] improved log periodic antenna covers the 80 MHz to 5 CHz frequency band, and offers broader bandwidth with greater power handling and a smaller size than existing log periodics.
This approach, combined with basic log periodic antenna concepts such as self-complementary structures, led to a dual polarized sinuous aperture concept.
Here, the radiation patterns in the xy-, xz-, and zy-planes were measured with a log periodic antenna as the transmitting antenna and the antenna being measured on a turntable as the receiving antenna.
For example, a conventional log periodic antenna can easily be designed to provide low SWR over several octaves of frequency.

Full browser ?