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2.60. A 1-m long dipole antenna is driven by a 150 MHz...
1. Consider a source driving the antenna model in the circuit below. The source has a voltage of 100Vrms and an impedance of RS 50 ohs. The antenna has an impedance of Z RRadRLoss+jX where the radiat...
1. Consider a source driving the antenna model in the circuit below. The source has a voltage of 100Vrms and an impedance of RS 50 ohs. The antenna has an impedance of Z RRadRLoss+jX where the radiation resistance RRad-3 ohms, the loss resistance RLoss-12 ohms, and the reactance jXj150 ohms. (a) What is the efficiency of the antenna? (This miserable efficiency is actually better than many electrically-small antennas.) (b) How much power is being radiated? (c) How much power would...
A λ/2 dipole, with a total loss resistance of 1 ohm, is connected to a generator...
A λ/2 dipole, with a total loss resistance of 1 ohm, is connected to a generator whose internal impedance is 25 + j25 ohms via a 50-ohm λ/2-long lossless transmission line. Assuming that the peak voltage of the generator is 2 V and the impedance of the dipole, excluding the loss resistance, is 73 + j42.5 ohms, find the power a) supplied by the source (real) b) radiated by the antenna c) dissipated by the antenna
Question 1 The power radiated by a lossless antenna is 10 watts.
Question 1 The power radiated by a lossless antenna is 10 watts. The directional characteristics of the antenna are represented by the radiation intensity of U = 2cos3θ watts/unit solid angle. Find the (a) Maximum power density at a distance of 1000 m (assume far-field distance) (b) Maximum directivity (c) Maximum gain Question 2 In target-search ground-mapping radars it is desirable to have echo power received from a target, of constant cross section, to be independent ofits range. For one such application, the desirable radiation intensity...
?please show the steps and make the picture clear?? PROBLEMS 1. 1 herms output voltage of...
?please show the steps and make the picture clear??
PROBLEMS 1. 1 herms output voltage of an AC source is 200 V and the operating frequency is 100 Hz. Write the equation giving the output voltage as a function of time. . 2. (a) What is the resistance of a lightbulb that uses an average power of 75.0 W when connected to a 60.0Hz power source having a maximum voltage of 170 V? (b) What If? What is the resistance...
please show steps, and solve asap BEE 433 Electronic Circuit Design Problem Set #1 Due date:...
please show steps, and solve asap
BEE 433 Electronic Circuit Design Problem Set #1 Due date: Answer the following problems and Circle the answers. 1.1 (Fig. 1.1 from the textbook) In the voltage amplifier circuit of Fig. 1.1, let vs = 100 mV, Rs = 100 k 52, Vi = 75 mV, RL = 10 S2, and vo = 2 V. If connecting a 30-S2 resistance in parallel with RL drops vo to 1.8 V, find Ri, A., and R....
1. Consider a source driving the antenna model in the circuit below. The source has a voltage of 100Vrms and an impedance of RS 50 ohs. The antenna has an impedance of Z RRadRLoss+jX where the radiation resistance RRad-3 ohms, the loss resistance RLoss-12 ohms, and the reactance jXj150 ohms. (a) What is the efficiency of the antenna? (This miserable efficiency is actually better than many electrically-small antennas.) (b) How much power is being radiated? (c) How much power would...
?please show the steps and make the picture clear??
PROBLEMS 1. 1 herms output voltage of an AC source is 200 V and the operating frequency is 100 Hz. Write the equation giving the output voltage as a function of time. . 2. (a) What is the resistance of a lightbulb that uses an average power of 75.0 W when connected to a 60.0Hz power source having a maximum voltage of 170 V? (b) What If? What is the resistance...
please show steps, and solve asap
BEE 433 Electronic Circuit Design Problem Set #1 Due date: Answer the following problems and Circle the answers. 1.1 (Fig. 1.1 from the textbook) In the voltage amplifier circuit of Fig. 1.1, let vs = 100 mV, Rs = 100 k 52, Vi = 75 mV, RL = 10 S2, and vo = 2 V. If connecting a 30-S2 resistance in parallel with RL drops vo to 1.8 V, find Ri, A., and R....
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