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Q. What do you mean by Antenna gain?
Antenna gain depends on both shape and size. Dipole antennas, commonly used at lower radio frequencies, are made up of a rod or wire of length λ/10 to λ/2, and have an antenna-gain range of 1.5 to 1.64 (1.8 to 2.1 dB). Horn antennas and parabolic dishes (so named after their shapes) have much more gain at higher frequencies. A useful, although approximate, expression for gain is given by
where λ is the wavelength being transmitted (or received), and Ae is the effective aperture or effective area of the antenna. Power amplifiers are needed to overcome the radio-transmission loss just as in a transmission-line system. Similar considerations hold for optical radiation, in which the electromagnetic wave takes the form of a coherent light beam.
CMOS processes: The low-performance "lateral" bipolar transistors occasionally employed in CMOS processes are sometimes designed symmetrically, i.e., with no distinction betwe
Q. What is the need for bias stabilization in BJT? BJT or bi-polar junction transistor is a three terminal, two junction semiconductor device and the conduction is due to the m
explain architecture of 8085
Q Determine the effective input noise temperature of a long piece of waveguide (that connects an antenna to a receiver) with a loss of 3.4 dB at 12 GHz and a physical temperature o
a) With the help of a neat and clean sketch illustrate the difference between relative and absolute motion measuring device. b) Discuss electromechanical methods for calculating
Q. In a differentiating circuit, R=10 kW,and C=2.2μF.If the input voltage goes from 0V to 10 V at a constant rate in 0.4s, determine the output voltage. Solution: e 0 =
hello, I do have some exams or test samples which are related to control and procces engineering. Can you have them solved with ilestrastion of all solving steps
Instruction size As we have seen already that each instruction has two parts Opcode ( Operation Code) Which tells the types of operation to be performed .
which simulation software is better for this project, and how can i simulate it?
Q. Compare MOSFET with JFET? a. In enhancement and depletion types of MOSFET,the transverse electric field induced across an insulating layer deposited on the semiconductor ma
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