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Q. Aconical horn has a side viewas shown in Figure The maximum value ofthe directive gain is given by GD ∼ = 5.13(D/λ)2, where D =√3.33λL1 and L1 = L/(1-d/D),in which d is the inside diameter of the waveguide. Beam widths for the main beam directed along the z-axis are given by θB = 60λ/D in degrees in the yz-plane, and by φB ∼ = 70λ/D in degrees in the xz- plane. Let the circular waveguide, with a 2.5-cm inside diameter, be expanded by adding a conical ?are to have an aperture with an inside diameter of 5.771λ at 8 GHz. For L1 = 10λ, find:
(a) The horn length L.
(b) The directive gain.
(c) The principal-plane beamwidths.
Q. Important function of common control subsystem? If a call is destined to a number in an exchange other than present one processing the digits, initial translator generates t
Digital Transmission on Fading Multipath Channels We have discussed thus far digital modulation and demodulation methods for the transmission of information over two types of c
consider a single stage ce amplifier with rs=1kohm,r1=50ohm,r2=2kohm,rc=1kohm,rl=1.2kohm,hfe=50,hie=1.1kohm,hoe=25microamp/volt and hre=2.5*10-4
Single Phase Full Wave Mid Point Type Rectifier A single phase full wave mid point type controlled rectifier consists two thyristors one centre tapped transformer an
Q. Consider an RC parallel circuit excited by (a) i(t) = 20e -2t A, and (b) i(t) = 20 A. Find the forced component of the current through the capacitor for R = 2 and C = 2F.
I need to do this experiment. Can anyone help me out doing this
Q. Planning and Research in power system? Energy research worldwide is assuming top priority, in particular because of economic, en - vironmental, and resource constraints. DOE
Q. Discuss FDM and illustrate how CCITT stndards help in building the base band? Ans: Frequency Division Multiplexing: It is the process of combining numerous informatio
Compare RISC & CISC architecture
what is use of capacitance calculation
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