A Compact Rectangular Slotted Microstrip Bandpass Filter

• Published in: SpringerBriefs in Applied Sciences and Technology
• Main Author: Norzeli S.M.; Terović E.; İmeci Ş.T.; Ramli N.; Shafie R.; Sharun S.M.
• Format: Book chapter
• Language: English
• Published: Springer Science and Business Media Deutschland GmbH 2024
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85185956510&doi=10.1007%2f978-3-031-51859-1_8&partnerID=40&md5=1d7616c6667cbb38eceb21f76af121ec

This paper presents a compact rectangular slotted microstrip bandpass filter in a 3D planar electromagnetic simulation software called Sonnet Suites. The microstrip filter design is symmetric along the inverse diagonal and consists of a dual-mode microstrip square ring resonator with an alternative perturbation element. This design has a compact rectangular structure of 1 × 1 cm. The substrate used is FR-4 with a dielectric constant of εr = 4.4 and a thickness of 1.6 mm. The filter has a center frequency of 4.33 GHz and a bandwidth of 1.9 GHz, with S12 is nearly zero while S11 is −23 dB. This filter can be implemented between 3 and 5 GHz operating frequencies in wireless. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.