A MODIFIED LOW INSERTION LOSS DUAL-MODE FILTER USING MEANDER SPUR-LINES.

The article focuses on the features of the dual-mode square-patch filters having meandered spur-lines. Having been compared to a traditional dual-mode square patch filter, it is noted that the proposed filters offers a 36 percent size reduction along with a lower insertion loss of -0.9 dB and that current distribution of density can be distorted by meander spur-lines.