1. prove and derive the resonant frequency of a short diopole antenna
1. prove and derive the resonant frequency of a short diopole antenna
An antenna is attached to an RCL circuit with the resonant angular frequency ω = 150 rad/s. What will the wavelength of the electromagnetic radiation generated in the circuit be? Express your answer in scientific notation using three significant digits.
Exercise A lossless resonant half-wavelength dipole antenna, with input impedance of 73 ohms, is connected to a transmission line whose characteristic impedance is 50 ohms. Assuming that the pattern of the antenna is given approximately by U Bo sin30 Find the maximum absolute gain of the antenna. Answer. 2.3 dBi]
Exercise A lossless resonant half-wavelength dipole antenna, with input impedance of 73 ohms, is connected to a transmission line whose characteristic impedance is 50 ohms. Assuming that the pattern of...
Given that the radiation resistance for a short dipole antenna is 75Ω and the length is 217.6mm, at what frequency would one expect this antenna to radiate?
Given that the radiation resistance for a short dipole antenna is 300Ω and the length is 200 mm, at what frequency would one expect this antenna to radiate?
(a) For the circuit of Figure 4, assuming a sinusoidal is(t) (0) Prove that the resonant frequeney is given by o- (3 marks) LC (ii) If the total admittance at resonance is 20 ms (seen by the source) with resonant frequency of wo 5000 rad/s and quality factor of Q-10, calculate the values of R L, C, the bandwidth and half-power frequencies in Hertz. (4 marks) VG and hence show (iii) Derive an expression for the driving point impedance Z(jø)...
2. Resonant Frequency. Show that the resonant frequency of a driven (forced) DHO is: Note that this expression strongly resembles the "natural frequency" of the DHO, but it is not the same. The "2" is different. (Hint: take the first derivative of the amplitude A(o) of the particular solution, F/G(o), with respect to ω, and set this equal to zero. Pay special attention to the inner derivative. Simple algebra will then yield the result.) 1S
Course Contents 》 IIW17 Resonant F Determine the resonant frequency of the circuit as as shown below, given that R 107Q, L 3 mH, and C-1 uF. The resonant frequency of the circuit : (rad/s) Incorrect. Tries 2/3 Previous Tries Post Discussion O Type here to search 5 6 WE R T YU
Derive the frequency reponse for the active filter in below and prove that it is a second order bandpass filter. R1 R2 U1 22Ω 22Ω Vo C1 L1 1mH -0.47μF | OPAMP 3T VIRTUAL R3 R4 5.6㏀ What is the purpose of negative feedback of the op-amp circuit? What are the 3dB frequencies?
When the frequency is twice the resonant frequency, the impedance of a series RLC circuit is three times the value of the impedance at resonance. Obtain the ratios of the inductive and capacitive reactances to the resistance (XL/R and XC/R) when the frequency is twice the resonant frequency.