A Dual-Frequency Microstrip Patch Antenna with Two Symmetrical Spur-lines for Wireless Communication Application

For dual-frequency operation, an inset-fed rectangular microstrip antenna (IRMA) loaded loaded with two symmetrical spur-lines along the two non-radiating edges of the rectangular shape is proposed. The proposed antenna has simulated resonance frequencies of 1.28 GHz and 1.89 GHz, allowing it to be used in wireless communication systems. The fundamental TM
10
mode and one activated lower order hybrid mode (
$\mathbf{TM}_{\boldsymbol{\alpha}\mathbf{0}}$
Mode-hybrid mode, where
$\mathbf{0} < \boldsymbol{\alpha} < \mathbf{1}$
) are the two exciting modes responsible for proposed antenna's dual-band operation. The proposed antenna has exhibited appropriate gain characteristics and stable radiation patterns for application in wireless communication domain.