Broadband Conformal End-fire Monopole Log-periodic Antenna Array
Keywords:
Conformal antenna, end-fired, monopole log-periodic antenna array, metal cylinderAbstract
The paper presented a broadband conformal end-fire monopole log-periodic dipole antenna array that can cover 2GHz-18GHz and have a good end-fire radiation pattern. The proposed monopole log-periodic antenna has a simple feed network, which uses slot microstrip lines as the feed network. The monopoles are designed on both sides of the copper substrate according to certain rules. The proposed 2G-18GHz conformal monopole log-periodic antenna array that consists of a metal cylinder, antennas fixed in metal inverted cone, and twelve monopole log-periodic antenna arrays. Two types monopole log-period antenna arrays conforming to a metal cylinder consisting of 2GHz-6GHz monopole log-periodic antenna unit and 6GHz-18GHz antenna unit 30° evenly placed in a wedge-shaped groove of a metal cylinder. The measured results show that the 2GHz- 18GHz end-fire antenna array are available and have good end-fire radiation.
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