In an antenna array, radiation in two separate, independent, modes is effected through the front ports, 15, of the main guides 10. Feed guides, 14a, 14b, supply frequency scanning signals and the feed guides 16a, 16b and the twist-reflector, 19, supply phase-controlled signals, to the ...
Computer simulation results demonstrated the validity of the multi - mode SAR based on circular scanning antenna. 计算机仿真结果表明基于环扫天线的 多模式 SAR是可行性的. 互联网 A multi - mode interference wavelength division multiplexer in GaAs has been studied in this paper. ...
LAPTOP COMPUTER WITH AN INTEGRATED MULTIMODE ANTENNA The antenna is integrally mounted to the laptop computer to increase the efficiency, convenience and robustness of radio frequency transmission. The antenna extends from the cover of the laptop computer for maximum efficiency in use, and... 존 ...
The performance of a dual-polarized quad-mode antenna, representing a potential array antenna element for wide scan-angle applications, is assessed. This analysis is carried out by investigating the utilization of the four available Transverse Electromagnetic (TEM) excitation modes, when beamforming for...
This paper investigates uni-/multi-cast and orbital angular momentum (OAM) mode data transmission in orthogonal directions by the utilization of a new circular antenna array, operating at 28 GHz. In the horizontal plane the proposed antenna array operate
A dual-band multi-mode array antenna is provided, including an antenna substrate with antenna units each of which having a feeding via; and a conductive substrate connected to the antenna substrate to form an angle in between. The conductive substrate has a symmetric feeding network disposed on ...
The simulation analysis shows that for the 4 × 4 multi-mode shortwave broadband transmitting antenna array, the gain obtained is 12–23.5 dB in the 4.4–27.4 MHz frequency band, and the VSWR for each mode is lower than 2.5. The radiation patterns at 5.9 MHz and 4.4 MHz on a ...
The invention provides an on-automobile multimode combined antenna which comprises a 4G main antenna, a 4G diversity antenna, an AM/FM antenna and a GNSS antenna. The 4G main antenna and the 4G diversity antenna are in a form of arranging antenna radiating metal sheets on antenna supporting ...
objective criterion. Although, in conventional antenna selection with the single-objective criterion, only the function of the UL and DL channels or the interference channel is considered. Finally, the simulations show that the new criterion has a higher throughput rate than the other conventional ...