A LC Resonator Based Low-pass Filter Embedded in LTCC Substrate

Abstract

This paper presents the design of a miniaturized low-pass filter embedded in LTCC (low-temperature co-fired ceramic) substrate. A low-pass filter used in wireless communication system with 9500 MHz cut-off frequency and 3dB insertion loss was designed based on LC resonator components. The simulation result shows that the attenuation is more than 30 dB in the stopband and the insertion loss in the passband is about 3dB . The size of the filter is 3.2mm X 1.6mm X 0.95mm. A basic guidelines is shown for the design. A sixth-order filter is fabricated for verification.