Phase and amplitude characteristics of InP:Fe modified interdigitated gap photoconductive microwave switches

Andersson, Ingmar; Eng, S. T.

doi:10.1109/22.18846

Cited by 16 publications

(7 citation statements)

References 16 publications

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“…In order to maintain some symmetry in the switch, C1 is identical to C4, R1 to R3, and L1 to L2. Lumped element circuits in the literature [16], [17] cover microstrip lines printed on a silicon substrate and so differ from this design as there is no conduction through the dielectric here.…”

Section: Silicon Switchesmentioning

confidence: 99%

Frequency and Beam Reconfigurable Antenna Using Photoconducting Switches

Panagamuwa

Chauraya

Vardaxoglou

2006

IEEE Trans. Antennas Propagat.

288

166

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Section: Silicon Switchesmentioning

confidence: 99%

Frequency and Beam Reconfigurable Antenna Using Photoconducting Switches

Panagamuwa

Chauraya

Vardaxoglou

2006

IEEE Trans. Antennas Propagat.

288

166

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“…The first switch operated by illuminated gap was reported in 1989 by Anderson et al [7]. They used GaAlAs/GaAs laser at 805 nm.…”

Section: Photoconductive Devicesmentioning

confidence: 99%

Frequency reconfigurable RF circuits using photoconducting switches

Draskovic

Panagamuwa

Vardaxoglou

et al. 2009

Int J RF and Microwave Comp Aid Eng

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“…To demonstrate the limitations of windowing, the particular choice of algorithm to generate a time-frequency representation is a matter of convenience. We will use (14) where is the time-frequency distribution of and a semicolon is used between the time-frequency variables to Fig. 9 shows an example time-frequency representation of a signal to be propagated through our model filter: low-frequency sine wave that abruptly transitions (with broad-band noise) to a higher-frequency sine wave.…”

Section: Analytical Examplementioning

confidence: 99%

Extending scattering-parameter approach to characterization of linear time-varying microwave devices

Green

Sobolewski

2000

IEEE Trans. Microwave Theory Techn.

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In this paper, we apply the theory of linear time-varying differential systems of equations to defining an extension of the standard scattering parameters. This extended parameter~() is a function of both time and frequency. With this definition, we can accurately characterize rapidly timeand frequency-varying linear lumped causal microwave devices, in particular, photoconductive microwave switches. We discuss the similarities between~() and the standard-parameter approach and describe a measurement technique. We also derive some important properties of the~()-parameters and describe conditions under which microwave devices such as photoconductive switches can be analyzed by this technique. To demonstrate the usefulness of~(), we derive the complete transfer function of the time-varying lumped-element model of a photoconductive switch. We also show the limitations of conventional time-invariant assumptions (based on windowing or apodization) to accurately model linear time-varying devices.

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Phase and amplitude characteristics of InP:Fe modified interdigitated gap photoconductive microwave switches

Cited by 16 publications

References 16 publications

Frequency and Beam Reconfigurable Antenna Using Photoconducting Switches

Frequency and Beam Reconfigurable Antenna Using Photoconducting Switches

Frequency reconfigurable RF circuits using photoconducting switches

Extending scattering-parameter approach to characterization of linear time-varying microwave devices

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