A Monofilar Spiral Antenna Excited Through a Helical Wire
スポンサーリンク
概要
- 論文の詳細を見る
The radiation characteristics of a monofilar spiral antenna excited through a helical wire are investigated using the method of moments. The spiral has a circumference of more than two wavelengths (2.3λ6, where λ6 is the wavelength at a test frequency of 6 GHz) to obtain a tilted beam. An input impedance of approximately 50 Ω is realized by appropriately selecting the diameter and pitch angle of the helical wire. The antenna shows a gain of approximately 8 dB relative to an isotropic source in the maximum beam direction (18° from the direction normal to the antenna plane) and a VSWR frequency bandwidth of approximately 12%.
- IEEEの論文
- 2003-03-00
IEEE | 論文
- Magnetic and Transport Properties of Nb/PdNi Bilayers
- Supersonic Ion Beam Driven by Permanent-Magnets-Induced Double Layer in an Expanding Plasma
- Surfactant Adsorption on Single-Crystal Silicon Surfaces in TMAH Solution: Orientation-Dependent Adsorption Detected by In Situ Infrared Spectroscopy
- Extended-range FMCW reflectometry using an optical loop with a frequency shifter
- Teachingless spray-painting of sculptured surface by an industrial robot