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Which of the following statement regarding smart antenna is false?

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Which of the following statement regarding smart antenna is false?

(a) Design of transceiver is complex

(b) Smart antennas is more directive

(c) Smart antenna is more expensive

(d) Numeric processors and control systems are not needed in smart antennas

I got this question in an interview for job.

This question is from Smart Antennas topic in chapter Smart Antennas of Antennas

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Correct choice is (d) Numeric processors and control systems are not needed in smart antennas

The explanation: Compared to the traditional base station trans-receivers, design of trans-receiver is a complex because there is a need of separate trans-receiver chains for each array elements. Smart antennas are more directive and costly. The base stations need very powerful numeric processors and control systems.

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