Search Results - "Stewart, J.A.C."

A 7.5-GHz super regenerative detector by Buchanan, N.B., Fusco, V.F., Stewart, J.A.C.

“…In this paper, simulated and measured results are presented for a microwave-integrated-circuit super regenerative detector operating at 7.5 GHz and brief…”
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Microwave PtSi-Si Schottky-barrier-detector diode fabrication using an implanted active layer on high-resistivity silicon substrate by Yunghong Wu, Armstrong, B.M., Gamble, H.S., Zhirun Hu, Qiang Chen, Suidong Yang, Fusco, V.F., Stewart, J.A.C.

“…A surface-oriented planar Schottky diode for use as a detector diode on Si monolithic microwave integrated circuits (MMIC's) was developed. The active…”
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Low-loss CPW lines on surface stabilized high-resistivity silicon by Gamble, H.S., Armstrong, B.M., Mitchell, S.J.N., Wu, Y., Fusco, V.F., Stewart, J.A.C.

“…The authors propose a solution to the surface conduction problem in silicon monolithic microwave integrated circuits (MMIC's). An LPCVD polycrystalline silicon…”
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SiO/sub 2/ interface layer effects on microwave loss of high-resistivity CPW line by Yunhong Wu, Gamble, S., Armstrong, B.M., Fusco, V.F., Stewart, J.A.C.

“…For a coplanar waveguide (CPW) line where the metal conductor is in direct contact with the HR-Si substrate, the microwave losses are low but are sensitive to…”
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Characteristics of trenched coplanar waveguide for high-resistivity Si MMIC applications by Suidong Yang, Zhirun Hu, Buchanan, N.B., Fusco, V.F., Stewart, J.A.C., Yunhong Wu, Armstrong, B.M., Armstrong, G.A., Gamble, H.S.

“…A novel low RF loss trenched coplanar waveguide (CPW) transmission-line structure fabricated using evaporated aluminum tracks on a high-resistivity (10-k/spl…”
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A K/sub a/ band MMIC super regenerative detector by Buchanan, N.B., Fusco, V.F., Stewart, J.A.C.

“…In this paper for the first time a K/sub a/ band MMIC oscillator has been designed to enable it to function as a super regenerative detector. This provides a…”
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Microwave Field Effect Transistors—Theory, Design and Applications by Stewart, J.A.C.

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A systematic optimization strategy for microwave device modelling by Patterson, A.D., Fusco, V.F., McKeown, J.J., Stewart, J.A.C.

“…The degree of ill-conditioning in the small-signal GaAs MESFET equivalent circuit model is formally quantified using a systematically formulated principal…”
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HBT active antenna as a self oscillating Doppler sensor by Kelly, M.J., Stewart, J.A.C., Patterson, A.D.

“…This paper investigates the use of Heterojunction Bipolar Transistors (HBTs) as the working device in an active antenna for a self detection system. The…”
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Characteristics of trenched coplanar waveguide for SiMMIC applications by Bu, Z.R., Fusco, V.F., Stewart, J.A.C., Wu, Y., Gamble, H.S., Armstrong, B.M., Buchanan, N.B.

“…A novel low loss trenched aluminium CPW transmission line structure, fabricated on a selection of high, medium and low resistivity silicon substrate materials,…”
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A vector corrected waveform and load line measurement system for large signal transistor characterisation by Leckey, J.G., Patterson, A.D., Stewart, J.A.C.

“…A vector corrected large signal measurement setup based on a microwave transition analyser has been developed to enable device output harmonic and waveform…”
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Analysis of HEMT harmonic generation using a vector nonlinear measurement system by Leckey, J.G., Stewart, J.A.C., Patterson, A.D.

“…A study of HEMT harmonic generation was carried out using a Vector Nonlinear Measurement System to measure drain and gate waveforms. The cause of second and…”
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Contact effects on HF loss of CPW high resistivity silicon lines by Hu, Z.R., Fusco, V.F., Wu, Y., Gamble, H.G., Armstrong, B.M., Stewart, J.A.C.

“…This paper shows that the HF losses of CPW lines realized on 5-10 K/spl Omega/cm HRS (High Resistivity Silicon) substrates are strongly affected by the…”
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Fully integrated Q-band MMIC transmitter and receiver chips using resistive PHEMT mixers by Nam, S., Gokdemir, T., Baree, A.H., Robertson, I.D., Plews, A.D., Howes, M.J., Snowden, C.M., Leckey, J.G., Patterson, A.D., Stewart, J.A.C.

“…This paper describes the design of resistive PHEMT mixers and their application in fully integrated Q-band millimetre-wave monolithic receiver and transmitter…”
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Network folding strategies for concurrent electromagnetic field mapping by Merugu, L.N., Fusco, V.F., Stewart, J.A.C.

“…A number of concurrent algorithms for dynamic field mapping based on the two-dimensional lumped circuit analogies of Maxwell's equations are presented…”
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Nonlinear MESFET parameter estimation using harmonic amplitude and phase measurements by Leckey, J.G., Stewart, J.A.C., Patterson, A.D., Kelly, M.J.

“…This paper presents the use of harmonic amplitude and phase measurements in a new approach to nonlinear modeling of the frequency dispersive MESFET…”
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Comparison of GaAs MESFET DC models by Hu, Z.R., McKeown, J.J., Brazil, T., Stewart, J.A.C.

“…A comparative study of ten GaAs MESFET DC models, including three variations, is described. The computations have been carried out using an interactive program…”
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Comparison of computational methods for MESFET intermodulation characteristics by Brazil, T.J., El-Rabaie, S., Fusco, V., Stewart, J.A.C.

“…A systematic comparison of a variety of approaches to the numerical calculation of GaAs MESFET intermodulation characteristics is presented, with particular…”
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A novel approach for the large signal analysis and optimisation of microwave frequency doublers by El-Rabaie, S., Stewart, J.A.C., Fusco, V.F., McKeown, J.J.

“…An approach is described for the large-signal analysis and optimization of microwave frequency doublers. A large-signal lumped-element model is used for an NE…”
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A large signal model for a GaInP/GaAs HBT by Kelly, M.J., Stewart, J.A.C., Patterson, A.D.

“…A large signal model for a GaInP/GaAs Heterojunction Bipolar Transistor is presented. The proposed model is a lumped element hybrid-pi topology. The extrinsic…”
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