A Novel High-Gain Sum and Difference Conical Beam-Scanning Reflector Antenna
نویسندگان
چکیده
منابع مشابه
A Novel Two-Beam Scanning Active Leaky-Wave Antenna
A novel two-beam scanning active leaky-wave antenna (LWA) has been developed. This LWA with a two-terminal feeding microstrip line structure is integrated with a varactortuned X-band high-electron mobility transistor (HEMT) voltagecontrolled oscillator (VCO). The signal of the VCO is injected via a T-divider into the radiating element. To excite the first higher order mode, the designed antenna...
متن کاملSwitched-Beam Slot Antenna over Electromagnetic Band-Gap Reflector
This paper presents the switched-beam slot antenna over the electromagnetic band-gap (EBG) reflector. This antenna is composed of two slot elements fed with phase difference and the EBG reflector, which is applied in order to realize the low profile structure. The radiation characteristics of this antenna are calculated using the FDTD method. The calculated results show that the antenna height ...
متن کاملHigh Gain Conformal Super High Frequency Antenna
A high gain conformal antenna is proposed having E-shaped patch to be used in SHF frequency range. A comprehensive parametric study has been carried out to understand the effects of various dielectric substrate effects and to optimize the performance of the antenna. For various substrate materials the effect of dielectric constant, loss tangent, mass density, bulk conductivity is observed .Resu...
متن کاملSignal Correlations and Diversity Gain of Two-Beam Microcell Antenna
The motivation of the present study is to investigate the possibility of using two independently directed antenna beams in a mobile base station to provide diversity gain and reduce fading problems in a microcellular environment. In this paper, the signal correlation of the individual antenna beams is studied, and it is shown that correlation depends on beamwidth, separation angle of the antenn...
متن کاملOn the design of a reflector antenna
We consider the problem of recovering a reflecting surface such that for a given point source of light the directions of the reflected rays cover a prescribed region of a far field sphere and the density of the distribution of the reflected rays is a function prescribed in advance, where the aperture of the incident ray cone is also prescribed in advance. Mathematically this problem requires on...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Access
سال: 2020
ISSN: 2169-3536
DOI: 10.1109/access.2020.2998835