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i am designing a module for car security system. basically few selected people voices will be pre recorded in a system where the individuals will say e.g ENGINE START and the module compare their voice with the pre recorded voice. If their voice is same as that of already saved. The...
we had made some connectivity of two switches (fastiron 446x) with optical fibre. the fibre was working smooth but then came a problem, one of the switch optical transceiver couldn't be able to receive the data. its transmission is good as i consulted with some network engineer. i want to know...
what is impulse response
impulse response is usually used in filter and for convolution but i always find it difficult to explain my self what is this and how does it help.
my question what is practical meaning of impulse response, either it an equation or characteristic of a system in...
actually i dealing with a cofusion. i went for an interview and the interviewer asked a question about optical fiber types. He asked me to differentatite between DOCK and SOCK fiber if me smelling are not wrong. i tried to find my self but it was no use so i asking u...
hi all here: i have checked hfss based antenna desing for the centre frequency of 60 ghz, but with lower gain?
is it nice to use dipole for such frquency, than to use other like patch etc?
in addition to it, how can we change the dimension of the patch antenna given in HFSS tutorial .
the phased array normaly studied at B.Sc level only takes dipole antenna consideration and most of the books also consider the dipole antenna array for phased array but a question normally raises that why we not consider loop antenna phased array.
i m now a day working on the loop antenna array and what come to my mind after all these research is that loop antenna cant be use for phased array this is because at high frequency the 1 lambda wavelength loop is already a phased element that has either phase shift in current or amplitude of...
please have ur views on this
The phase generator circuit is designed to phase shift a radio frequency (RF) carrier at 418 MHz by 90o. The circuit will be implemented with a LC-network that is composed of an inductor connected in series with a capacitor. The circuit thus produces two RF...
i am final year student and i have a project on smart antenna(adaptive phased array),i using frequency of 418MHz, the antenna is two dipoles of spacing of 3/8.
now the problem i am facing is in phase generator, i want to gave a phase shift of 90 degree, all i know is i have to use LC oscillator...
phase shifter circuit
i came to know that lc oscillator can be used to gave phase shifter,
let suppose i am designing a phase shifter and i am working on 418MHz and i want to gave a phase shift of 90 degree then how can LC oscillator can be used as a phase generator
every one from field of electromagnetics knows that their exist to FIELDS
near field... and 2 far field
but when comes to our result we always consider far field and pattern is always used why
why not near field I CAME TO KNOW THAT NEAR FIELD IS SOME WHAT COMPLEX i mean to say that it...
i need to know what shall be the best possible solution to have array spacing of 3/8lambda between 2 elements of ADAPTIVE PHASED ARRAY dipole antenna either NO ARRAY/REGULAR ARRAY/CUSTOM ARRAY when comes to no array then what shall be its alternatives.