Title :
C and Ka-Band Wide Bandpass Filter Using LTCC Technology
Author :
Tabatabai, F. ; Al-Raweshidy, H.S.
Author_Institution :
Dept. of Electron., Brunel Univ., Uxbridge
Abstract :
This paper presents two types of wideband filters that have been developed at 5 and 28-GHz frequency bands, respectively. These filters have been fabricated with low temperature co-fired ceramics (LTCC) multilayer technologies. Each filter has approximately 20% and 12% 3dB bandwidth, insertion loss less than 1.5 dB, and has an attenuation over 30 dB at fit plusmn15% respectively. Design procedure is described and design examples are given to demonstrate the features of the proposed coupling structure. A wide-band LTCC filter is simulated and successfully built. The advantages of multilayer LTCC technology such as high integration and vertical stacking capabilities were employed to design edge- coupled embedded microstrip wide BPF. The difficulties in controlling the precise distance between two adjacent resonators in LTCC edge-coupled BPF were overcome by locating the resonators on different layers.
Keywords :
band-pass filters; microstrip filters; microwave filters; LTCC technology; bandpass filter; coupling structure; edge-coupled embedded microstrip; frequency 28 GHz; frequency 5 GHz; insertion loss; low temperature co-fired ceramics multilayer technologies; vertical stacking capabilities; wide-band LTCC filter; Attenuation; Band pass filters; Bandwidth; Ceramics; Frequency; Insertion loss; Nonhomogeneous media; Resonator filters; Temperature; Wideband; Filter; LTCC; multilayer substrate; wideband;
Conference_Titel :
Microwave Conference, 2007. APMC 2007. Asia-Pacific
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0748-4
Electronic_ISBN :
978-1-4244-0749-1
DOI :
10.1109/APMC.2007.4554808
