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Repeat the analysis of the balanced amplifier of Example 12.7 using a 3 dB coupled line hybrid coupler. Use CAD software to optimize the input and output matching networks of the amplifiers to obtain a flat 10 dB gain response from 3 to 5 GHz, and compare the results with those obtained using the quadrature hybrid.
Example 12.7
Use the amplifier of Example 12.4 in a balanced configuration operating from 3 to 5 GHz. Use quadrature hybrids, and plot the gain and return loss over this frequency range. Using microwave CAD software, optimize the amplifier matching networks to give 10 dB gain over this band.
An automobile battery is charged with a constant current of 2 A for five hours. The terminal voltage of the battery is v = 11 + 0.5t V for t > 0, where t is in hours. (a) Find the energy delivered to the battery during the five hours.
Design low pass active filter with a cutoff frequency t at 10kHz or more by 30db and have the pass band gain positive that does not deviate from 20db by more than 3db. The pass band frequency needed is 800Hz and below Derive transfer function
Two infinitely long coaxial cylindrical surfaces, r = a and r= b (b > a), carry surface charge densities ρsa and ρsb,respectively. (a) Determine the electric field intensity everywhere.
Using a 7490 decade counter, design a circuit to count from0 through 9 and display the values on a seven-segment display Produce a logic diagram for circuit.
When finding the inverse Z-transform of functions with z-1 terms in the numerator, the fact that z-1 can be thought of as a delay operator can be used to simplify the computation. Consider X(z) =1 - z-10 / 1 - z-1
Evaluating Coding Gain, CNR, and BER of a DSSS-CDMA Transmitter, a. A DSSS-CDMA transmitter sends message signals at a rate of 5.0 kbps using a long chip sequence with a rate of 1 M chips per second. In the receiver, what is the processing gain (a..
To become familiar with computations involving phasors and the complex representation of sinusoidal ac powers, including the effect of power factor (PF) improvement on both the line current and voltage sources.
Two plane waves that are spatially and temporally coherent propagate in the x-z plane and intersect at an angle such that each wave makes an angle (please see the attached file) with the z-axis. The figure below shows the k-vectors associated with..
What is the transfer function for a median filter. Determine the step response for a 5-point median filter. Determine the impulse response.
the main mission of this project is to design and build a tap changer which is going to be fitted to power transformers
Calculate the frequency of the recovery voltage transient and the maximum voltage to appear across the CB contacts
Does the carrier frequency of a system have an impact on small scale fading and shadowing. when moving over a distance x,will variations in received signal power be greater for low frequencies or high freq and why.
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