학술논문
A Miniaturized 13-26.5 GHz Filter Bank Based on MMIC and LTCC
Document Type
Conference
Author
Source
2023 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Microwave and Millimeter Wave Technology (ICMMT), 2023 International Conference on. :1-3 May, 2023
Subject
Language
Abstract
This paper presents a miniaturized filter bank with three channels based on monolithic microwave integrated circuit (MMIC) and low temperature co-fired ceramic (LTCC), which covers from 13 GHz to26.5 GHz. Distributed interdigital structure was used in filter design in order to get a small size and sharp edge, and the results of the on-wafer measurement show that the insert loss of each filter is less than 5 dB. All these three filters were assembled in a LTCC substrate with a size of 15 mm × 18 mm, which also contains input and output SP3T PIN switches and a complete bias network. The switching channel can be operated by a control voltage of ±5 V. The measurement results show that the insert loss of the filter bank is less than 10 dB and the fractional bandwidth is more than 20%. Measurement results have a great agreement with simulation results.