Determine the dimensions of antenna , Macroeconomics

Design a rectangular patch antenna (substrate: εr = 3, tan-δ=0, h = 0.75 mm) operating at f0 = 2.5 GHz

a) Determine the dimensions W and L of the antenna, assume w/λo << 1

b) The antenna is to be matched to 100 Ω using recessed feeding line. Design the recessed length (L1) to match the antenna to the feed line.

c) This antenna design is now used in an array of (2X1, side by side placement).

C1. In which direction does the main radiation beam points if the antennas are symmetrically fed.

C2. In which direction does the main radiation beam points if the antennas are fed with different length transmission lines that gives rise to a phase difference of 0.75 between them.

 

Posted Date: 3/6/2013 12:50:54 AM | Location : United States







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