-- card: 121677 from stack: in
-- bmap block id: 0
-- flags: 4000
-- background id: 7720
-- name: #410
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on openCard
  global group,rightone
  put 38 into group
  put "B" into rightone
  pass openCard
end openCard



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Question #38

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4BI-3A.1 What is a "resonant rhombic antenna"?

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A unidirectional antenna, each of whose sides is equal to half a wavelength and which is terminated in a resistance equal to its characteristic impedance

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A bidirectional antenna open at the end opposite that to which the transmission line is connected and with each side approximately equal to one wavelength

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An antenna with an LC network at each vertex (other than that to which the transmission line is connected) tuned to resonate at the operating frequency

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A high-frequency antenna, each of whose sides contains traps for changing the resonance to match the band in use

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Correct answer is B