Compact Wideband Broadside-Coupled Microstrip-Slot Bandpass Filter for Communication Applications

Norhudah Seman (Universiti Teknologi Malaysia)
Dyg Norkhairunisa Abang Zaidel (Universiti Malaysia Sarawak)
Zuhaili Amalina Abd. Wahid (Universiti Teknologi Malaysia)
Nor Azimah Mohd Shukor (Universiti Teknologi Malaysia)
Tharek Abd Rahman (Universiti Teknologi Malaysia)

Indonesian Journal of Electrical Engineering and Computer Science
Vol 5, No 3: March 2017

This paper proposes a compact size design of wideband bandpass filter (BPF). The broad-side coupling microstrip-slot technique is used to accomplish a good passband response with very low insertion loss across a wideband frequency range. The BPF that is designed using Rogers RO4003C substrate shows a good performance with the respective maximum reflection coefficient and insertion loss of -10 dB and 1.2 dB between 0.92 GHz and 5 GHz. This type of BPF filter is useful in any communication applications.