Results 121 to 130 of about 2,238 (164)

Ultra Wideband Wearable Antenna

2019 8th Asia-Pacific Conference on Antennas and Propagation (APCAP), 2019
In this paper, a design approach of an Ultra-Wide Band microstrip patch antenna with decent performance and low SAR results is presented. The proposed antenna consists of conducting circular patch element etched on a dielectric printed circuit board with compact size 40×40×1.4 mm3. The design is wearable for on-body applications, flexible, light weight
Jawad Samawi, Haneen Mahmoud, Amena Abu Hmaidan, Omar Saraereh   +3 more
openaire   +1 more source

An Ultra-Wideband Bicone Antenna

2006 IEEE International Conference on Ultra-Wideband, 2006
An ultra-wideband bicone antenna is developed to cover the 25 MHz to 6 GHz frequency band with a minimum gain at the horizon greater than -5 dBi (>100 MHz) to -10 dBi (25-100 MHz) over this frequency range and a VSWR falling between 2:1 and 3:1. This bicone has a radiating aperture that is 2 inches in diameter and 44 inches long.
Donald N. Black, Theresa A. Brunasso
openaire   +1 more source

Recent topics in Ultra-Wideband Antennas

2012 IEEE International Conference on Ultra-Wideband, 2012
We study here three topics in Ultra-Wideband Antennas. First, we consider a standard for characterizing antenna performance in the time domain, We develop a single time domain function, called antenna impulse response, which fully describes antenna performance with equations that are as simple as possible in both the frequency and time domains.
openaire   +2 more sources

Ultra-Wideband Antenna Technology

2020
This chapter is about ultra-wideband (UWB) antennas and arrays of UWB radiators. Most conventional antenna literature is about narrowband antennas and analysis, which covers most practical situations. The UWB antenna design and analysis require an extension of conventional antenna thinking from steady-state to transient conditions.
P. R. Foster, J. Doss Halsey, Malek G. M. Hussain   +2 more
openaire   +1 more source

Research on Ultra-Wideband Antenna

2008 4th International Conference on Wireless Communications, Networking and Mobile Computing, 2008
This paper introduces the character and requirement of UWB antenna based on microstrip quasi-horn, horn, abnormity monopole, microstrip meandered-loop and biconcial omni-directional antenna. Several types of antenna for UWB are reviewed. These antennas are simulated and compared. These improvements are provided.
Xiaojuan Chen, Lianlian Li
openaire   +1 more source

Ultra-wideband antenna arrays

IEEE Antennas and Propagation Society International Symposium. 2001 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.01CH37229), 2002
The radiation characteristics of ultra-wideband (UWB) monopulse arrays are discussed in this paper. The UWB arrays considered here consist of ultra-wideband sources radiating coded sequences of ultra-narrow Gaussian mono-pulses with very low duty cycle.
openaire   +1 more source

An ultra-wideband reflector antenna

Proceedings of IEEE Antennas and Propagation Society International Symposium, 2002
An experimental reflector antenna using a hybrid orthogonal TEM (transverse electromagnetic) feed concept is described. The new TEM feeding arrangement extends the operating frequency bandwidth by allowing the reflector antenna to operate efficiently at lower frequencies. The radiation characteristics were examined over a 10:1 bandwidth.
openaire   +1 more source

A novel ultra-wideband antenna

Antennas and Propagation Society Symposium 1991 Digest, 2002
The authors present a novel ultra-wideband antenna that has been developed by combining two radiating structures, the slotline antenna and the bowtie horn antenna. It is shown that this antenna can maintain a stable pattern throughout a wide bandwidth, in this case 2 to 18 GHz, a flat plateau-like main beam, low sidelobes, low voltage standing wave ...
A. Lai, W.D. Burnside, A. Sinopoli
openaire   +1 more source

Introduction to ultra-wideband antennas

IEEE Conference on Ultra Wideband Systems and Technologies, 2003, 2004
This paper presents an introduction to ultra-wideband (UWB) antennas, including a summary of key UWB antenna concepts, as well as system and network considerations, and fundamental limits for UWB antennas.
openaire   +1 more source

Ultra Wideband Dipole Antenna

2017
?? ?????? ???????????? ???????????????????? ??????????????-???????????????? ????????????????, ?? ?????????? ?????????????????????? ?????????? ?????????? ?????????????????? ????????????. ???? ???????????????? ?????????????????????????????? ???????????????? ?????????????? ?? ???????????? ??????????????????????????????????.
Bakhrakh, L.D., Los', V.F., Shamanov, A.N.   +2 more
openaire   +1 more source