| 1. |
High‐efficiency diffraction modulation of light by strain‐optic effect of piezoelectrically induced standing acoustic waves in bulk LiNbO3crystal |
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Microwave and Optical Technology Letters,
Volume 3,
Issue 6,
1990,
Page 193-195
Cs. Kuti,
I. Turi,
Li Yan,
Chi H. Lee,
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摘要:
Abstract100% modulation of light was achieved by the strain‐optic effect of the piezoelectrically induced standing acoustic waves in a bulk LiNbO3crystal. The modulation index as high as 4 was attained. As a result, in a single pass a continuous wave light has been modulated resulting in transmission peaks of width less than 2 ns at a repetition rate of 100 MH
ISSN:0895-2477
DOI:10.1002/mop.4650030602
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1990
数据来源: WILEY
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| 2. |
Modeling and experimental study of breakdown mechanisms in multichannel AIGaAs/GaAs power hemts |
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Microwave and Optical Technology Letters,
Volume 3,
Issue 6,
1990,
Page 195-199
Farid Temcamani,
Yves Crosnier,
Didier Lippens,
Georges Salmer,
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摘要:
AbstractA theoretical and experimental analysis of breakdown in the power HEMT AlGaAs/GaAs single or multiple wells is presented in this article. The two phenomena ionization and tunneling have been considered. The understanding of breakdown mechanisms has led to definition of structures particularly suitable for power applications.
ISSN:0895-2477
DOI:10.1002/mop.4650030603
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1990
数据来源: WILEY
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| 3. |
A 16 × 16 microstrip array of electromagnetically coupled patches operating in the high‐gain region |
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Microwave and Optical Technology Letters,
Volume 3,
Issue 6,
1990,
Page 199-200
R. Q. Lee,
K. F. Lee,
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摘要:
AbstractA microstrip array at 18.4 GHz consisting of 16 × 16 rectangular electromagnetically coupled patch antennas operating in the high‐gain region is experimentally investigated. The pattern and impedance characteristics of the array are compared with the case when the parasitic elements are remov
ISSN:0895-2477
DOI:10.1002/mop.4650030604
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1990
数据来源: WILEY
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| 4. |
Analysis of arbitrarily shaped COAX‐FED microstrip antennas—a hybrid mixed‐potential integral equation approach |
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Microwave and Optical Technology Letters,
Volume 3,
Issue 6,
1990,
Page 200-203
Dalian Zheng,
Krzysztof A. Michalski,
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摘要:
AbstractArbitrarily shaped coax‐fed microstrip patch antennas on thick substrates are studied using a hybrid mixed‐potential integral equation approach, which incorporates a triangle‐element model of the patch and a simplified treatment of the probe‐to‐patch junction. Computed input impedance data are shown to agree well with measure
ISSN:0895-2477
DOI:10.1002/mop.4650030605
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1990
数据来源: WILEY
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| 5. |
A treatment by the FD‐TD method of the dispersive characteristics associated with electronic polarization |
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Microwave and Optical Technology Letters,
Volume 3,
Issue 6,
1990,
Page 203-205
Tatsuya Kashiwa,
Ichiro Fukai,
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摘要:
AbstractIn this article, the formulation of dispersive characteristics associated with an electronic polarization is discussed. The formulation is appropriate for use in the finite‐difference‐time‐domain (FD‐TD) method and is based on the equation of polarization. The validity of the formulation is verified by comparing the calculated complex dielectric constant with analytical
ISSN:0895-2477
DOI:10.1002/mop.4650030606
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1990
数据来源: WILEY
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| 6. |
Changes in the band structure pattern of microstrip filters due to gap capacitive effects |
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Microwave and Optical Technology Letters,
Volume 3,
Issue 6,
1990,
Page 205-207
J. A. Brandão Faria,
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摘要:
AbstractSimulation results are presented for a transversally symmetric three‐line microstrip half‐wave filter structure, showing the effect of taking into account the finite series‐gap capacitances associated with existing internal strip discontinu
ISSN:0895-2477
DOI:10.1002/mop.4650030607
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1990
数据来源: WILEY
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| 7. |
Accurate solutions for planar transmission lines by an improved singular integral equation technique |
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Microwave and Optical Technology Letters,
Volume 3,
Issue 6,
1990,
Page 208-210
Yafei Huang,
Liangjin Xue,
Weigan Lin,
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摘要:
AbstractAn improved singular integral equation (SIE) technique is proposed which can be used for the analysis of finlines, microstrip lines, coplanar transmission lines, etc. The concepts of regular solution of the SIE and generalized characteristic equation are introduced. Numerical results show that it is an efficient and accurate method.
ISSN:0895-2477
DOI:10.1002/mop.4650030608
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1990
数据来源: WILEY
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| 8. |
A novel very wideband 2‐port S‐parameter calibration technique |
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Microwave and Optical Technology Letters,
Volume 3,
Issue 6,
1990,
Page 210-212
R. Soares,
P. Gouzien,
S. Meszaros,
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摘要:
AbstractIn this article explicit formulas are presented permitting the de‐embedding of two‐port S‐parameter data in the case of the through‐reflect family of calibration techniques. The readily programmable algorithm developed is applied to a novel through‐attenuate‐reflect method (TAR) which, unlike the through‐reflect‐line method, has no inherent bandw
ISSN:0895-2477
DOI:10.1002/mop.4650030609
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1990
数据来源: WILEY
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| 9. |
Compact semi‐lumped element microwave bandpass filter with harmonic suppression |
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Microwave and Optical Technology Letters,
Volume 3,
Issue 6,
1990,
Page 212-214
K. K. M. Cheng,
J. K. A. Everard,
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摘要:
AbstractA compact structure for a microwave bandpass filter which uses both microstrip lines and lumped elements is proposed. These filters exhibit broad low‐spurious stopbands, a highly suppressed second passband, and small size. A 4.3‐GHz 23% bandwidth 5‐section prototype has been tested and shows good performance. These filters could find applications in radar and communication sy
ISSN:0895-2477
DOI:10.1002/mop.4650030610
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1990
数据来源: WILEY
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| 10. |
Achievement of low coupling loss between a 1.55‐μm wavelength laser diode and a high NA MCVD‐single‐mode fiber by conical microlens |
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Microwave and Optical Technology Letters,
Volume 3,
Issue 6,
1990,
Page 214-217
H. Ghafouri‐Shiraz,
K. Cameron,
R. M. A. Fatah,
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摘要:
AbstractA low coupling loss of ‐1.34 dB has been achieved between a laser diode emitting at around 1.55 μm wavelength and a high numerical aperture MCVD single‐mode fiber by fabricating a conical microlens on the end surface of the fiber. Also for the same source a coupling loss of about ‐3dB has been achieved when a conventional MCVD single‐mode fiber with a core diameter of 7.3 μm
ISSN:0895-2477
DOI:10.1002/mop.4650030611
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1990
数据来源: WILEY
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