Antenna for mobile radio system

摘要: PROBLEM TO BE SOLVED: To provide a means that employs one choke to block the leakage of an unbalanced current coaxial feeder, requires small required space with simplified structure in case, when feeding is applied plurality feeders antenna elements vertical diversity configuration. SOLUTION: A first feeder 14 inserted through sleeve 13 at lower part 1st 11 and energized almost middle sleeves 12, 13. 2nd 24 13, 23, nearly 22, 23 21. 19 connected outer conductors 17, 27 14, antennas 11, 21, so as constitute distance between point 12 be set 0.5nλ, connecting 3λ/4.