Results 21 to 30 of about 2,134 (167)
Tightly Coupled Array Antennas for Ultra-Wideband Wireless Systems
IEEE Access, 2018 Tightly coupled array (TCA) antenna has become a hot topic of research recently, due to its potential of enabling one single antenna array to operate over an extremely wide frequency range.
Yonggang Zhou +8 more
doaj +1 more source
Design and Measurements of Ultra-Wideband Antenna
International Journal of Communications, Network and System Sciences, 2010 This paper describes the design, realization and experimental measurements of an antenna element to operate at ultra-wideband (UWB) spectrum. The type of this antenna is a circular disk monopole (CDM), with two notches opposite to each other at two sides of the disk. The feed of the antenna is a coplanar waveguide (CPW).
Giorgos Tatsis +2 more
openaire +2 more sources
Applying of Luneburg lens for multi-beam TEM-horn antenna
The Journal of Engineering, 2019 Here, a multi-beam TEM-horn antenna with beam direction is proposed. Presented construction allows obtaining scanning beam and complicated antenna patterns, thus it can be used as substitute of ultra-wideband phased array antennas.
Anatoly M. Bobreshov +4 more
doaj +1 more source
Directive Ultra-Wideband Planar Antennas
, 2010 Since the acceptance of unlicensed use of the Ultra-Wideband (UWB) technology in the range between 3.1 and 10.6 GHz in the USA (FCC, 2002) and more recently between 3.4 and 8.5 GHz in Europe (ETSI, 2008), the realization of low-cost UWB wireless systems is considered a fundamental research goal both for military and commercial applications.
CAPOBIANCO AD +7 more
openaire +5 more sources
Antenna Evaluation for Ultra-Wideband Microwave Imaging
International Journal of Antennas and Propagation, 2010 Numerous antenna designs have been proposed for microwave breast imaging utilizing an ultra-wideband frequency range. The antennas are typically compact, operate in an immersion medium, and have a band covering at least 2–10 GHz.
Jeremie Bourqui +3 more
doaj +1 more source
Robot vision ultra-wideband wireless sensor in non-cooperative industrial environments
International Journal of Advanced Robotic Systems, 2018 In this article, the ultra-wideband technology for localization and tracking of the robot gripper (behind the obstacles) in industrial environments is presented.
Pavol Galajda +6 more
doaj +1 more source
A Compact WiMAX Band-Notched UWB MIMO Antenna with High Isolation [PDF]
Radioengineering, 2018 A multiple-input-multiple-output (MIMO) antenna is proposed for ultra-wideband (UWB) applications with high isolation capability. The proposed MIMO structure consists of two simple square monopole antennas with slotted ground plane structure with S11 ...
B. Azarm +4 more
doaj
A broadband dual‐polarised antenna with L‐shaped strips for long‐term evolution/5G application
IET Microwaves, Antennas & Propagation, 2023 A broadband dual‐polarised antenna with L‐shaped strips for long‐term evolution (LTE)/5th generation mobile networks (5G) is proposed in this article. Based on the principle of multi‐mode resonance, wide bandwidth is achieved with L‐shaped strips and H ...
Rui Wu +3 more
doaj +1 more source
An Ultra-Wideband Ridged Biconical Multibeam Antenna
IEEE Access, 2023 This paper presents an ultra-wideband multibeam antenna with eight radiating elements that are connected to the central cylindrical part. Each radiating element consists of a TEM horn fed by a coaxial to ridged planar waveguide transition. The connection between the radiating elements and the central cylindrical part equivalently acts as a biconical ...
Mahdi Zoghi +2 more
openaire +2 more sources
Design and analysis of ultra‐wideband decoupling structure based on polarization mismatch
Electronics LettersIn this work, a polarization rotating surface is designed, analyzed, and applied to the decoupling of ultra‐wideband antennas. A method of using dual‐size combined rings is proposed to expand the operating bandwidth to 4.8 to 18.2 GHz, and the ...
Jianpu Qiao +4 more
doaj +1 more source