Zobrazeno 1 - 8
of 8
pro vyhledávání: '"G.A. Ellis"'
Publikováno v:
IEEE Transactions on Pattern Analysis and Machine Intelligence. 30:1109-1113
Utilizing the multiple degrees of freedom offered by the data glove for each finger and the hand, a novel on-line signature verification system using the Singular Value Decomposition (SVD) numerical tool for signature classification and verification
Autor:
S. Liw, G.A. Ellis
Publikováno v:
IEEE Transactions on Antennas and Propagation. 51:2899-2906
We present an electrically small antenna for use with high efficiency power amplifiers for wireless applications. A planar inverted-F antenna design is described that can be optimized as a class-F termination for use as a load at the output of a fiel
Autor:
G.A. Ellis, S. Liw
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 2:250-253
We present an electrically small antenna for use with high-efficiency power amplifiers for wireless applications. A planar inverted-F antenna (PIFA) design is shown that is optimized to provide an inverse class-F load termination for use at the outpu
Autor:
Irene C. Peden, G.A. Ellis
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 35:756-761
This paper addresses the detection and localization of a buried two-dimensional (2D) dielectric object in the presence of an air-Earth interface. The techniques used are modifications of the well-known backpropagation operator, including plane-wave a
Autor:
Irene C. Peden, G.A. Ellis
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 33:535-540
Complex geological structures are modelled in the presence of an air-Earth interface. A cross-borehole configuration of target, source, and receiver is assumed, with the target itself not restricted as to geometrical cross section or complex permitti
Publikováno v:
2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535).
A W-band DHBT power amplifier chip set consisting of a cascode power amplifier and a driver amplifier fabricated in InP technology is reported. The cascode power amplifier has a total of 160 um/sub 2/ of emitter area and results in a power gain of 8.
Autor:
G.A. Ellis
Publikováno v:
2000 Asia-Pacific Microwave Conference. Proceedings (Cat. No.00TH8522).
A two-stage monolithic microwave integrated circuit (MMIC) power amplifier for phased-array applications and fabricated on gallium arsenide is described. The device technology used is 0.25 um pHEMT having an f/sub t/=50 GHz and power density of 300 m
Autor:
Irene C. Peden, G.A. Ellis
Publikováno v:
IEEE Antennas and Propagation Society International Symposium 1992 Digest.
A scale model developed for experimentally studying cross-borehole geophysical imaging is described. The model is about 1/40 scale and operates in the 2-3 GHz region. Earth in the form of sandy loam was used and reflections from the sides and bottom