Results 191 to 200 of about 9,753 (225)

Optimization of Tapered Bragg Reflectors in Microstrip Technology

International Journal of Infrared and Millimeter Waves, 2000
The frequency responses of tapered Bragg reflectors made by etching one row of holes on the ground plane of a microstrip line are analyzed, comparing different windows and their effects on the rejection level, the bandwidth, the side lobe level and the abruptness of the main stop band.
M. A. G. Laso, M. J. Erro, T. Lopetegi, D. Benito, M. J. Garde, M. Sorolla   +5 more
openaire   +1 more source

Narrow-band HTS microstrip combiner technology

IEEE Transactions on Appiled Superconductivity, 1997
Contiguous 7-pole filters centred at 7.97 and 8.00 GHz have been made by co-evaporation of YBa/sub 2/Cu/sub 3/O/sub x/ thin films on MgO substrates. The 0.3% bandwidth filters make stringent demands on the design and fabrication processes. Good control of the centre frequency and bandwidth, sharp cut-offs and high linearity have been achieved.
R.G. Humphreys, C.P. Barrett, N.G. Chew, S.J. Hedges, R.B. Greed, B.D. Hunt, B.F. Nicholson, S. Hensen, G. Muller   +8 more
openaire   +1 more source

Emerging trends in Microstrip Antenna Technology

2007 IEEE Applied Electromagnetics Conference (AEMC), 2007
This paper presents recent trends in microstrip antenna technology highlighting the bandwidth improvements, reflectarray antennas, reconfigurable antennas, electromagnetic band gap structures, frequency selective surfaces and genetic algorithm based antenna designs. Antennas developed at SAMEER, based on theses concepts are included along with measured
openaire   +1 more source

Real-time spectrum analysis in microstrip technology

IEEE Transactions on Microwave Theory and Techniques, 2003
We report on a time-domain analog in microwave lines to the spatial Fraunhofer (far-field) diffraction in paraxial conditions. Microstrip lines are used to design filtering configurations acting as spectrum analyzers. They are based on linearly chirped distributed Bragg coupling between the fundamental microstrip mode and the same but ...
M.A.G. Laso, T. Lopetegi, M.J. Erro, D. Benito, M.J. Garde, M.A. Muriel, M. Sorolla, M. Guglielmi   +7 more
openaire   +1 more source

Real-Time Spectrum Analysis in Microstrip Technology

31st European Microwave Conference, 2001, 2001
We report on a time-domain analog to the spatial far-field Fraunhofer diffraction using microstrip lines with chirped distributed Bragg coupling between the fundamental microstrip mode and the same but counter-propagating mode. The chirping of the microstrip impedance yields to linear group delays within the reflected bandwidth.
M. A. G. Laso, T. Lopetegi, M. J. Erro, M. Castillo, D. Benito, M. J. Garde, M. A. Muriel, M. Sorolla, M. Guglielmi   +8 more
openaire   +1 more source

Synthesis and implementation of quadruplet filter with microstrip technology

Proceedings of 2012 9th International Bhurban Conference on Applied Sciences & Technology (IBCAST), 2012
Modern wireless communication transceiver applications often pose stringent out-of-band rejection requirements which necessitate steep and sharp narrow band rejection profile for microwave filters. The use of transmission zero inserted filters are very common to achieve such a response type.
M. Salman Yousaf, Humayun Zahid
openaire   +1 more source

A wide-band microstrip-to-microstrip multi-layered via transition using LTCC technology

2009 IEEE Electrical Design of Advanced Packaging & Systems Symposium (EDAPS), 2009
A wide-band microstrip-to-microstrip via transition used for connecting integrated circuits and antenna array in a multi-layered low-temperature co-fired ceramic substrate is investigated in this paper. The via transition is decomposed into external and internal segments to facilitate the design. The equivalent impedance of internal segment, consisting
null Chih-Chun Tsai, null Yung-Shou Cheng, null Ting-Yi Huang, Ruey-Beei Wu   +3 more
openaire   +1 more source

Ultra Wideband Vias and Power Dividers in Microstrip-Slot Technology

2007 Asia-Pacific Microwave Conference, 2007
The design of ultra-wideband vias and power dividers in microstrip-slot technology is presented. The devices employ two substrates supported by a common ground plane. Their design is accomplished with the use of commercially available full EM analysis and design software. Low insertion loss and good return loss performances over an ultra wide frequency
Seman, Norhudan, Bialkowski, Marek E., Khor, Wee Chang   +2 more
openaire   +2 more sources

Double-sided “radiation resistant” microstrip detectors: Technology and results

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1996
Abstract The paper describes the technology used for the fabrication of a set of prototypes of microstrip silicon detectors matching the requirements of the CMS inner tracking system. The detectors are single and double-sided devices featuring integrated AC coupling on both sides.
G. Tonelli, FOCARDI, ETTORE, R. J. Wheadon   +2 more
openaire   +3 more sources

Filtre Simulation in Microstrip Technology

1991
International ...
Touati, Moussa, El Zein, Ghaïs, Citerne, Jacques   +2 more
openaire   +1 more source