Abstract

An integrated photonic microwave bandpass filter has been demonstrated incorporating a coherently coupled microring resonator in low-loss polymers. The resonator was designed to have an extremely small bandwidth so that it could be used to selectively pass the optical signal carrying the microwave signal to attain efficient bandpass filtering. The demonstrated device may feature compact size, simple structure, stable operation, possible tuning via the thermooptic effect, and furthermore flexible integration with other electrical/opt ....etc

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MICROWAVE VACUUM TUBE DEVICES


Why Ordinary Vacuum Tube Devices can not generate Microwave?



Higher value of inter-electrode capacitance, lead inductance and transit time limits the high frequency operation of Vacuum Tube devices.
.Reducing the area of electrodes or by increasing the distance between them the inter-electrode capacitance can be reduced but at the same time transit time of the device increases, which in turn reduces the operating frequenc ....etc

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Introduction
In recent years, Broadband technology has rapidly become an established, global commodity required by a high percentage of the population. The demand has risen rapidly, with a worldwide installed base of 57 million lines in 2002 rising to an estimated 80 million lines by the end of 2003. This healthy growth curve is expected to continue steadily over the next few years and reach the 200 million mark by 2006. DSL operators, who initially focused their deployments in densely-populated urban and metropolitan areas, are now challenged ....etc

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sir,
can u send me the full report of this topic..

thanks in advance. ....etc

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Introduction
In recent years, Broadband technology has rapidly become an established, global commodity required by a high percentage of the population. The demand has risen rapidly, with a worldwide installed base of 57 million lines in 2002 rising to an estimated 80 million lines by the end of 2003. This healthy growth curve is expected to continue steadily over the next few years and reach the 200 million mark by 2006. DSL operators, who initially focused their deployments in densely-populated urban and metropolitan areas, are now challenged ....etc

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Microwave Remote Sensing

(MRS)

What is microwave remote sensing?
A special application of microwave communications technologies for the purpose of collecting geophysical information about targets (objects and media) without making physical contact.
Microwave reflections or emissions from earth materials bear no direct relationship to their counterparts in the visible portions of the spectrum.

How does Microwave Remote Sensing work?
There is an interaction between the EM waves and matter.
The target imposes a modulation on the EM ....etc

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hai
please send me details and if possible report on topic application of superconductivity in microwave range ....etc

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Worldwide Inter operatibility for Microwave Access ....etc

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Worldwide Interoperability for Microwave Access. In the rap.idly-evolving sphere of wireless technology, WiMAX is. the next generation in wireless access to the Internet with speeds that are equivalent to cable or DSL connections. While Wi-Fi focused on providing wireless LAN and Internet access, WiMAX is geared to deliver broadband access over a range of 10 t6 50 kIn at speeds varying from 10 to 70 Mbps. There are two main types of WiMAX: Fixed WiMAX and Mobile WiMAX.



Similar to cellular networks, the WiMAX service is provided through ....etc

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hello ,
i want pdf of the topic microwave remote sensing.plz send it. ....etc

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