Results 61 to 70 of about 88,827 (197)

Ultra-wideband loop antenna

Electronics Letters, 2010
An ultra-wideband loop antenna is proposed that is based on a wavelength loop antenna and a slot antenna. The self-complementary principle is applied to the designed ultra-wideband antenna. The antenna operates as a loop antenna in the low frequency band (0.3-1-GHz) and as a slot antenna in the high frequency band (1-14.2-GHz).
M.-H. Yoon, Y. Shin, H.-K. Ryu, J.-M. Woo   +3 more
openaire   +1 more source

Polarization and Radiation Pattern Reconfigurability of a Planar Monopole-Fed Loop Antenna for GPS Application [PDF]

Radioengineering, 2016
This paper presents a reconfigurable loop antenna with monopole-fed using embedded RF PIN switches based shorted parasitic elements for GPS applications. The antenna can independently reconfiguring multiple polarizations with switchable radiation pattern.
M. M. Fakharian, P. Rezaei, A. A. Orouji
doaj  

Wavelet OFDM Wireless Communication System for Autonomous Underwater Vehicles Using Loop-Shaped Antennas in Underwater Environments

IEEE Access
The manuscript introduces a radio wave-based wireless communication system tailored for Autonomous Underwater Vehicles (AUVs), optimized for underwater deployment.
Ryosuke Hasaba, Kazuhiro Eguchi, Toshiyuki Wakisaka, Jiro Hirokawa, Miyuki Hirose, Tohlu Matsushima, Yuki Fukumoto, Yuya Nishida, Kazuo Ishii   +8 more
doaj   +1 more source

Non-Foster Matching Circuit Design via Tunable Inductor for VLF Receive Loop Antennas

International Journal of Antennas and Propagation, 2017
This paper presents a non-Foster matching circuit (NFC) for very low frequency (VLF) receive loop antennas. A 1 ⁎ 1 m VLF receive loop antenna was designed with a CMOS switch-based tunable inductor built into the NFC.
Yalong Yan, Chao Liu, Huaning Wu, Yinghui Dong   +3 more
doaj   +1 more source

Cost-Effective Design of Polarization and Bandwidth Reconfigurable Millimeter-Wave Loop Antenna. [PDF]

Sensors (Basel), 2023
Asfour R, Khamas SK, Ball EA.
europepmc   +1 more source

Active Electrically Small Antenna Based on Superconducting Quantum Array

, 2012
We introduce Superconductive Quantum Arrays (SQAs) and propose to use these structures as active Electrically Small Antennas (ESA). Several prototypes of the active ESA were fabricated using Nb process with critical current density 4.5 kA/cm2 and ...
Klenov, Nikolay V., Kornev, Victor K., Mukhanov, Oleg A., Sharafiev, Alexey V., Soloviev, Igor I.   +4 more
core   +1 more source

Reliable, versatile and remotely controlled instrumentation of an hectometric loop antenna using appropriate technologies. [PDF]

HardwareX, 2023
Dezord C, Micolau G, Abbas C, Mesgouez A, Borgo EPD.   +4 more
europepmc   +1 more source

Application of adaptive antenna techniques to future commercial satellite communication [PDF]

The purpose of this contract was to identify the application of adaptive antenna technique in future operational commercial satellite communication systems and to quantify potential benefits. The contract consisted of two major subtasks.
Ersoy, L., Lee, E. A., Matthews, E. W.
core   +1 more source

Polarization diversity monopulse tracking receiver Patent [PDF]

, 1967
Polarization diversity monopulse tracking receiver design without radio frequency ...
Taylor, R. E.
core   +1 more source

3D Folded Loop UAV Antenna Design [PDF]

, 2018
Utilization of Unmanned Aerial Vehicles (UAVs), also known as “drones”, has a great potential for many emerging applications, such as delivering the connectivity on-demand, providing services for public safety, or recovering after damage to the communication infrastructure.
Pyattaev A., Solomitckii D., Ometov A.
openaire   +3 more sources