Note on impedance characteristics of L-shaped wire monopole antenna

Abstract

The impedance characteristics of an L‐shaped wire monopole antenna are experimentally investigated. The effect of different ratios of the horizontal arm length to the height of the L‐shaped monopole on the impedance characteristics is discussed. The investigation demonstrates how a monopole with an overall quarter‐wavelength converts to a low‐profile small inverted‐L antenna (ILA). It also shows that a height of ∼10% operating wavelength is a critical condition. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 26: 22–23, 2000.

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