2.33 Two half-wave dipole antennas, each with an impedance of 75 92,

are connected in parallel through a pair of transmission lines, and the

combination is connected to a feed transmission line, as shown in Fig.

P2.330,

Figure P2.33 Circuit for Problem 2.330.

Zin

-0.32

Zin

Zin₂

-0.22

-0.22-

7592

(Antenna)

75 92

(Antenna)

Figure P2.33 Full Alternative Text

All lines are 50 22 and lossless.

a. Calculate Zin,, the input impedance of the antenna-

terminated line, at the parallel juncture.

b. Combine Zin, and Zin, in parallel to obtain Z₁, the effective

load impedance of the feedline.

c. Calculate Zin of the feedline.