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What is the full form of LPDA?

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What is the full form of LPDA?

(a) Log Periodic Dipole Array

(b) Log Periodic Dispersed Array

(c) Low Periodic Dispersed Array

(d) Low Power Dipole Array

I got this question in a national level competition.

My query is from Asynchronous TDM topic in section Multiplexing & Sampling of Bandpass Signal of Analog Communications

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Right option is (a) Log Periodic Dipole Array

Best explanation: LPDA stands for Log Periodic Dipole Array. LPDA consists of a number of half-wave dipole driven elements which gradually increases in length.

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