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Design considerations for MMIC distributed amplifiers
(IEEE, 1994)
The bandwidth of the input artificial line in a distributed amplifier is the main band limiting factor. By choosing this impedance properly the bandwidth of a distributed amplifier can be maximized. A four section GaAs ...
New high-resolution display device for holographic three-dimensional video: principles and simulations
(SPIE, 1994)
A new acousto-optical holographic display device, which is expected
to solve the display resolution and refresh problems that are common
to available holographic displays, is proposed. The device is based
on the ...
Improving AWE accuracy using multipoint Pade approximation
(IEEE, 1994-05-06)
A new method is proposed for dominant pole-zero analysis of large linear circuits containing both lumped and distributed elements. This method is based on a multipoint Pade approximation. It finds a reduced order s-domain ...
A novel algorithm for DC analysis of piecewise-linear circuits: popcorn
(IEEE, 1994)
A fast and convergent iteration method for piecewise-linear analysis of nonlinear resistive circuits is presented. Most of the existing algorithms are applicable only to a limited class of circuits. In general, they are ...
Influence of missing array elements on phase aberration correction for medical ultrasound
(IEEE, 1994)
The influence of missing array elements on aberration correction based on time delay estimation using radio frequency signals of neighboring elements is experimentally investigated. Normalized cross correlation and sum of ...
Bi-angular lens for material characterization
(IEEE, 1994)
In this paper a new lens design is proposed for characterization of layered materials. Lamb wave lens employs Lamb waves for this purpose since these waves propagate along interfaces. However, below cut-off angle, the ...
Characterization and imaging with lamb wave lens at gigahertz frequencies
(IEEE, 1994-10-11)
Lamb wave lenses with conical refracting surfaces are fabricated for use at 400 MHz and 1 GHz. The conical surfaces are ground and polished with mechanical means and they are sufficiently smooth for the frequencies of ...