This paper reports on the successful development of a four stage, directly cascaded GaAs FET monolithic preamplifier chip realized using truly lumped elements for both RF and DC circuitry. The chip is designed to be e...
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This paper reports on the successful development of a four stage, directly cascaded GaAs FET monolithic preamplifier chip realized using truly lumped elements for both RF and DC circuitry. The chip is designed to be entirely self-biased and contains all required DC circuitry on-chip for operation from a single drain supply. The design is based on a nominal 1 micron gate length interdigital FET geometry of planar construction. The device is fabricated using a selective ion implantation process. The finished die dimensions are 0.060 by 0.110 inch with a thickness of 0.015 inch. The chip provides a gain of over 20 dB in a 2 GHz band centered near 7 GHz. The noise figure achieved is 6 dB, the output power at 1 dB gain compression is typically +8 dBm, and the third order intermodulation intercept point is approximately +20 dBm.
The design of nonrecursive digital filters based on the Kaiser window function, and the alternative design based on the weighted-Chebyshev approximation due to Rabiner, McClellan and Parks are used together in an impr...
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The design of nonrecursive digital filters based on the Kaiser window function, and the alternative design based on the weighted-Chebyshev approximation due to Rabiner, McClellan and Parks are used together in an improved procedure for the design of digital differentiators. The new procedure leads to significant savings in the amount of computation, of the order of 15 to 38 percent. In addition, a method is proposed which can be used to design equiripple differentiators satisfying prescribed bandwidth and inband accuracy specifications.
A method for computing the output noise spectrum of sampled - data circuits by means of autocorrelation techniques is presented. The noise at the output of most switched capacitor circuits may be separated into two cl...
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A method for computing the output noise spectrum of sampled - data circuits by means of autocorrelation techniques is presented. The noise at the output of most switched capacitor circuits may be separated into two classes, namely noise which appears sampled and held at the output and direct wideband noise. Each one of these classes has an autocorrelation function with a specific shape. In this analysis noise contribution of the amplifier and the ″on″ resistance of the MOS switches are considered. Experimental measurements at an exemplary circuit verify the results obtained by this method. Rules for the design of low noise switched capacitor circuits are given.
A new approach to the DC optimization of electrical circuits, which avoids the usual procedure of manually repeated local optimization runs, is presented. Given a range of value for each design parameter, it returns a...
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A new approach to the DC optimization of electrical circuits, which avoids the usual procedure of manually repeated local optimization runs, is presented. Given a range of value for each design parameter, it returns a list of all the local minima found in the parameter space, and among them the global one. Its advantages are a reduced turn-around time for the circuit designer, comparing to the repeated runs procedure; and also the possibility of comparing the computed local minima, a very useful feature from the engineering point of view.
An interval algebraic method which can be used to solve the worst-case tolerance design problems of the electroniccircuits are presented. Since it utilizes the linear relation between the variations of branch admitta...
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An interval algebraic method which can be used to solve the worst-case tolerance design problems of the electroniccircuits are presented. Since it utilizes the linear relation between the variations of branch admittance and port voltage in current, so it can avoid the critical ″sharp″ problem of the interval arithmetic and get a simpler design formula.
Proceedings includes 165 papers dealing with mm-wave IC's, microwave FET's, computer-aided design and measurements, printed circuits, FET applications, six-ports, dielectric resonators, passive components and ...
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Proceedings includes 165 papers dealing with mm-wave IC's, microwave FET's, computer-aided design and measurements, printed circuits, FET applications, six-ports, dielectric resonators, passive components and networks, solid-state circuits and devices, high-power circuits and systems, ferrite applications, mm-wave solid-state devices, GaAs monolithic circuits, microwave acoustics, phased and active array techniques, low-noise techniques, biological effects and medical application, microwave field and network theory as well as guided wave optics and signal processing. Topics covered include: waveguides, antennas, amplifiers, oscillators, microstrip devices, filters, electroniccircuits including mixers and phase shifters, telecommunication lines, semiconductor devices and diodes, radar circuits, acoustic surface wave devices, radio systems, laser applications, integrated optics and spectrum analyzers. 161 papers are abstracted and indexed separately.
An attempt is made to combine a couple of well-known concepts into a new approach to solve the biasing problem in electronic nonlinear circuitsdesign. Assume that for a particular circuit various large- and small-sig...
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An attempt is made to combine a couple of well-known concepts into a new approach to solve the biasing problem in electronic nonlinear circuitsdesign. Assume that for a particular circuit various large- and small-signal DC-requirements are specified. At the same time let there be a set of designable parameters. A description is provided of a way to obtain diagnostic information about the feasibility of the design problem as well as a procedure to compute the values of the parameter if such scheme exists.
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