A 2-5 GHz tunable magnetostatic wave oscillator

AbstractA novel magnetooptic (MO) Bragg cell modulator that utilizes a magnetostatic forward volume wave (MSFVW) oscillator is presented. The carrier frequency of the MSFVW signals involved in the MO interaction is tuned linearly from 2.112 to 3.274 GHz by increasing an external bias magnetic field from 2350 to 2900 Oe. Compared with a conventional magnetostatic wave (MSW) delay line-based MO Bragg cell modulator, the proposed modulator can provide significantly higher diffraction efficiency owing to reduction of insertion losses in the MSFVW oscillator. Furthermore, the oscillator-type MO modulator can be more easily integrated with other MMIC devices.

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A magnetostatic wave oscillator for data relay satellite

IEEE Transactions on Magnetics ◽

10.1109/20.908869 ◽

2000 ◽

Vol 36 (5) ◽

pp. 3488-3490 ◽

Cited By ~ 15

Author(s):

R. Marcelli ◽

E. Andreta ◽

G. Bartolucci ◽

M. Cicolani ◽

A. Frattini

Keyword(s):

Magnetostatic Wave ◽

Wave Oscillator

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Tunable magnetostatic-wave oscillator employing a single GaAs MMIC chip

Electronics Letters ◽

10.1049/el:19890141 ◽

1989 ◽

Vol 25 (3) ◽

pp. 196 ◽

Cited By ~ 3

Author(s):

C.L. Chen ◽

L.J. Mahoney

Keyword(s):

Magnetostatic Wave ◽

Wave Oscillator

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Magnetostatic wave oscillator frequencies

Journal of Applied Physics ◽

10.1063/1.328903 ◽

1981 ◽

Vol 52 (3) ◽

pp. 2273-2275 ◽

Cited By ~ 6

Author(s):

J. C. Sethares ◽

M. R. Stiglitz ◽

I. J. Weinberg

Keyword(s):

Magnetostatic Wave ◽

Wave Oscillator

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Microwave wide band absorption by carbon from Corn cob-1

JOURNAL OF ADVANCES IN PHYSICS ◽

10.24297/jap.v12i2.53 ◽

2016 ◽

Vol 12 (2) ◽

pp. 4204-4212 ◽

Cited By ~ 1

Author(s):

Maheshwar Sharon ◽

Ritesh Vishwakarma ◽

Abhijeet Rajendra Phatak ◽

Golap Kalita ◽

Nallin Sharma ◽

...

Keyword(s):

Microwave Absorption ◽

Agricultural Waste ◽

Wide Band ◽

Nickel Nitrate ◽

Equivalent Amount ◽

Frequency Range ◽

Corn Cob ◽

Different Temperatures ◽

Band Absorption ◽

5 Ghz

Corn cob, an agricultural waste, is paralyzed at different temperatures (700oC, 800oC and 900oC). Microwave absorption of carbon in the frequency range of 2 GHz to 8 GHz is reported. Carbon activated Â with 5%Â nickel nitrate showed more than 90% absorption of microwave in the frequency range from 6 GHz to 8 GHz, while carbon activated Â with 10% Nickel nitrate treated corn cob showed 90% absorptionÂ in the frequency range of 2.5 GHz to 5 GHz. Carbon showing the best absorption are characterized by XRD, Raman spectra and SEM . It is suggested that corn cob treatmentÂ Â alone with KOH did not improve the microwave absorption, whereas treatment along with nickel nitrate improved the absorption property much better. It is proposed that treatment with nickel nitrate helps in creating suitable pores in carbonÂ Â which improved the absorption behavior because while treating carbon with 1N HCl helps to leach out nickel creating equivalent amount of pores in the carbon.

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Analog Circuit Failure Analysis Using Time-Resolved Emission

ISTFA 2005: Conference Proceedings from the 31st International Symposium for Testing and Failure Analysis ◽

10.31399/asm.cp.istfa2005p0363 ◽

2005 ◽

Author(s):

B.J. Cain ◽

G.L. Woods ◽

A. Syed ◽

R. Herlein ◽

Toshihiro Nomura

Keyword(s):

Analog Circuits ◽

Integrated Circuit ◽

Analog Circuit ◽

Photon Emission ◽

Nonlinear Process ◽

Time Resolved ◽

Non Invasive ◽

Highly Nonlinear ◽

Excellent Spatial Resolution ◽

5 Ghz

Abstract Time-Resolved Emission (TRE) is a popular technique for non-invasive acquisition of time-domain waveforms from active nodes through the backside of an integrated circuit. [1] State-of-the art TRE systems offer high bandwidths (> 5 GHz), excellent spatial resolution (0.25um), and complete visibility of all nodes on the chip. TRE waveforms are typically used for detecting incorrect signal levels, race conditions, and/or timing faults with resolution of a few ps. However, extracting the exact voltage behavior from a TRE waveform is usually difficult because dynamic photon emission is a highly nonlinear process. This has limited the perceived utility of TRE in diagnosing analog circuits. In this paper, we demonstrate extraction of voltage waveforms in passing and failing conditions from a small-swing, differential logic circuit. The voltage waveforms obtained were crucial in corroborating a theory for some failures inside an 0.18um ASIC.

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