Bandwidth Extension of a Printed Square Monopole Antenna Loaded with Periodic Parallel-Plate Lines

Abstract EN

A novel wideband monopole antenna employing periodically loaded parallel-plate lines is presented in this paper.

The proposed antenna consists of a main square patch, a rectangular ground plane, and a periodical structure which is printed on both sides of substrate.

A strong electromagnetic coupling technique is used to design the element that enhances impedance bandwidth and decreases the side-lobe level throughout the effective bandwidth.

The antenna achieves a wide impedance bandwidth of about 61.1% or ranging from 2.16 to 4.06 GHz, an omnidirectional far-field pattern, and a peak radiation gain of 2.37 dBi.

Finally, the proposed antenna is analyzed and measured.

The measured results show satisfactory performance and good agreement with the simulated results.