Results 21 to 30 of about 78,142 (266)
Future Internet, 2019 In this paper, we propose an optimal time and power allocation scheme in a wireless power supply full-duplex (FD) relay system, where we consider the number of relay antennas in the energy harvesting stage.
Xin Song +4 more
doaj +1 more source
Joint Uplink and Downlink Resource Allocation for D2D Communications System
Future Internet, 2019 In cellular networks, device-to-device communications can increase the spectrum efficiency, but some conventional schemes only consider uplink or downlink resource allocation.
Xin Song +4 more
doaj +1 more source
Future Internet, 2019 In this paper, we propose a joint power allocation, time switching (TS) factor and relay selection scheme for an energy harvesting two-way relaying communication network (TWRN), where two transceivers exchange information with the help of a wireless ...
Xin Song +3 more
doaj +1 more source
Design of a polarization selective surface for co‐channel interference suppression
Electronics Letters, 2022 In this paper, a novel design of polarization selective surface (PSS) is proposed for co‐channel interference (CCI) suppression. By establishing a switchable doublet topology, two types of second‐order filtering responses with two transmission zeros are ...
Xian Wang +4 more
doaj +1 more source
Effect of wall thickness on broadband design of a Ka-band TE21-mode coupler
Journal of Electronic Science and Technology, 2021 Commonly, the classical formulas for designing TE21-mode coupler are suitable for the operating frequency under Ka-band by virtue of ignoring wall thickness.
Wei Zheng +3 more
doaj +1 more source
IET Microwaves, Antennas & Propagation, 2021 This study reports a class of balanced‐to‐unbalanced (BTU) and balanced‐to‐balanced (BTB) filtering rat‐race couplers (FRCs) based on multilayer substrate integrated waveguide (SIW) cavities.
Xian Wang +5 more
doaj +1 more source
A Wide Frequency Scanning Printed Bruce Array Antenna with Bowtie and Semi-Circular Elements
Sensors, 2020 A printed edge-fed counterpart of the wire Bruce array antenna, for frequency scanning applications, is presented in this paper. The unit-cell of the proposed antenna consists of bowtie and semi-circular elements to achieve wide bandwidth from below 22 ...
Zeeshan Ahmed +2 more
doaj +1 more source
IET Microwaves, Antennas & Propagation, 2023 The design, fabrication, and measurement of a 7 × 7 mm‐wave array antenna have been presented for 5G communications. The substrate integrated waveguide (SIW)‐fed antenna element is formed of four parts: a rectangular radiating patch, a coupling slot cut ...
Fuguo Zhu +5 more
doaj +1 more source
A Design Framework for Beamforming Integrated Circuits Operating at Mm-Wave Frequencies
IEEE Access, 2021 In order to cope with the needs of fifth-generation (5G) cellular networks and beyond, phased-array antenna systems operating at millimeter-wave (mm-wave) frequencies will be required. This makes the system design very complex. In order to create insight
Guilherme Theis +4 more
doaj +1 more source
International Journal of Antennas and Propagation, 2014 A new mutual coupling compensation method for wideband adaptive arrays is proposed. The new method is developed by combining the element pattern reconstruction method and the system identification method.
Qiulin Huang +4 more
doaj +1 more source