The proposed antenna is fabricated and measured. Measured results show that the proposed antenna achieves the expected radiation performance and validates the effectiveness of the dual polarized antenna design. The wide-beam antenna studied in this paper is suitable for missile telemetry system. The ...
Metamaterial-based thin planar lens antenna for spatial beamforming and multibeam massive MIMO[J]. IEEE Transactions on Antennas and Propagation, 2017, 65(2): 464–472. doi: 10.1109/TAP.2016.2631589 [10] LI T, CHEN Z N. Compact wideband wide-angle polarization-free metasurface lens antenna ...
Design of a 3D Printed Wide Band Metasurface Antenna for High Power Applications Weight-size optimization is the main challenge of high-power antenna design. This paper presents a low-profile, metasurface-based wideband antenna. The pro... MZM Hamdalla,M Zawad,M Kunkle,... - 《Progress in ...
All these deployable antennas are of the parabolic reflector type with metalized mesh reflecting surfaces. Because they have been parabolic with a relatively small focal length, they lack wide-angle beam scanning ability—only a few beamwidths can be scanned. The mesh surface also limits the upper...
Attention should be placed on the permission from other parties to install a gateway and to prevent theft of the gateway. When other gateways are at reach then it will act as a repeater to extend the range. The antenna reach is aggravated by climate conditions such as rain and fog. When ...
Broad operating regions have been found where the output power due to weight noise is less than 5% of the output signal power. 展开 关键词: Adaptive systems Antenna arrays Antijamming Beam steering Communication equipment Cancellation Spread spectrum Processing Low strength White noise Signal processing...
The School of Life Sciences has also actively engaged in international collaborations, establishing partnerships with leading institutions worldwide, which have enhanced its global presence and facilitated the sharing of knowledge and resources. Today, the School of Life Sciences stands as one of China...
ijesrt international journal of engineering sciences & research technology design of a wideband 1×2 y-branch optical beam splitter using gaas based photon... MS Akther,MR Khandkar,S Saikh,... 被引量: 0发表: 2018年 DESIGN OF C-SLOT ANTENNA FOR WIDE BAND APPLICATIONS WITH STOP BAND OPEAR...
First, there is the German Aerospace Center (DLR) Falcon, an 18 m long jet aircraft with a range of 3700 km and a service ceiling of 12,800 m altitude. It is equipped with a wide range of instruments for both in situ and remote sensing measurements, and also with telecommunication ...
Despite some successful cases, in general the translation of siRNA therapeutics to wide clinical use is still hindered by a major hurdle associated with in vivo delivery, especially for extrahepatic delivery. A common feature of the current delivery strategies is that the siRNAs are pre-assembled ...