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in a general sence you can say the bandwidth of an antenna means the range of frequencies over which the antenna will work properly.
now if you see the the othere things , lamda/2 , slot antenna or the microstrip antenna these indicates the shape of the antenna ,
Re: Modulation exercise
the meaning of parameters are very simple
ip = the plate current of the tubes
beta= the modulation index
egk = may be the voltage
if you are using opamp, this IC itself is a amplifier , the one and only one this is you have to design a feedback path to control the gain . generally we do go for negative feedback to have better control over the ckt. to design a feedback ckt you can use a resistor between the output terminal...
What causes SR? actually there is usually a capacitor within or out side of the opamp to prevent oscillation. it is the capacitor which prevents the output voltage to respond immidiately to the input. So the SR can be defind as SR = Imax/C.
so if we want to increease the SR then we have to...
Re: 555 Duty factor
there is no relation between the freqency and duty cycle. because the duty cycle is define as the ratio of on time to total time but in case of 555IC generally we do like to define this as ratio of off time to total time. where as the frequency is the 1/the total time. if...
if at all you need a microcontroller, then i think u can use a microprocessor kit like MPS 85 generally used for labs. with the help of the parallel transmission controller INTEL 8255 , write a ALP to control input and out put . ofcourse u may have to use a ADC for this purpose. i had used...
simple gsm jammer circuit
can any one give me detail ckt about the components and the related data on JAMMER. i m doing a project on this . please help me
byom
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