Results 1 to 10 of about 157 (133)
Filtenna with Frequency Reconfigurable Operation for Cognitive Radio and Wireless Applications [PDF]
Micromachines, 2023 A reconfigurable wideband monopole antenna is introduced in this paper for cognitive radio and wireless applications. The reconfigurability was achieved by four varactor diodes embedded in the band pass filter (BPF) structure which was integrated with ...
Ahmed A Ibrahim, Mahmoud A Abdelghany
exaly +4 more sources
A Frequency-Reconfigurable Filtenna for GSM, 4G-LTE, ISM, and 5G Sub-6 GHz Band Applications [PDF]
Sensors, 2022 This paper presents the design and realization of a flexible and frequency-reconfigurable antenna with harmonic suppression for multiple wireless applications. The antenna structure is derived from a quarter-wave monopole by etching slots. Afterward, the
Nam Kim, Niamat Hussain, W A Awan
exaly +4 more sources
Design of a Compact Unified SIW Cavity Filtenna Module for Antenna Array Application [PDF]
MicromachinesThe design of a multilayer SIW cavity-fed filtenna is presented. The proposed filtenna can be used as a unified module in an antenna array structure. It consists of three-pole bandpass filter with slot antenna positioned centrally within the top module ...
Andrey Altynnikov, , Roman Platonov
exaly +4 more sources
Optically Controlled Reconfigurable Filtenna [PDF]
International Journal of Antennas and Propagation, 2016 This work is regarding the development of a novel antenna called optically controlled reconfigurable filtenna, which is based on the integration of a broadband printed antenna with a bandpass reconfigurable RF filter.
L. G. Silva +2 more
doaj +3 more sources
Reconfigurable Diplexer-Based Filtenna for Tx/Rx Operation in Mobile Satellite Terminals [PDF]
Sensors, 2020 Large constellations of low-orbit satellites have already been launched with the aim of offering complete worldwide coverage of broadband Internet; however, compact, simple, and low-cost mobile terminals are necessary to establish the communication. This
João Nuno Matos, Varum T
exaly +4 more sources
IET Communications, 2022 Direct RF sampling has been suggested as a solution for receivers that are flexible in frequency and across standards, while utilising only a single radio frequency front‐end.
Stephen Henthorn +2 more
doaj +2 more sources
A scalable UWB-to-reconfigurable MIMO filtenna with single-varactor tuning and enhanced isolation for adaptive 5G and cognitive radio systems [PDF]
Scientific ReportsThis work presents a complete development framework that begins with a new fork-shaped ultra wideband (UWB) antenna. The antenna is designed, optimized, fabricated, and experimentally validated. The prototype achieves a very wide bandwidth extending from
Hager S. Fouda +2 more
doaj +2 more sources
Single‐Layer Fourth‐Order SIW Filtering Antenna With Controllable Radiation Nulls
IET Microwaves, Antennas & PropagationThis paper proposes a filtering antenna utilising single‐layer substrate‐integrated waveguide (SIW) dual‐mode cavities for 5G millimetre‐wave user equipment.
Yun‐Qiu Li +3 more
doaj +2 more sources
Journal of EngineeringAntennas and filters are two key components that make up the configuration of the radio frequency (RF) front end of any wireless communication system. While the antenna is responsible for transmitting and receiving signals in the system, the filter is ...
Augustine O. Nwajana +2 more
doaj +2 more sources
Continuously Frequency-Tunable Horn Filtennas Based on Dual-Post Resonators
International Journal of Antennas and Propagation, 2019 This work reports the concept and development of two mechanically frequency-tunable horn filtennas for microwave and millimeter-waves. Our design approach relies on the integration of a horn antenna with a mechanically tunable filter based on dual-post ...
Andreia A. C. Alves +4 more
doaj +2 more sources