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A novel millimeter-wave LTCC based on three-line stripline structure wideband bandpass filter is presented. Folded structures are employed to realize minimization. Compared with traditional three-line structure, the presented structure can easily expand the passband with using much more compact 3-D structure, and introduce one transmission zero by putting resonators in a folded way, so that the rejection...
In this paper, a new kind of dual-mode Folded Substrate Integrated Waveguide (FSIW) filters in K-band with Low-Temperature Co-fired Ceramics (LTCC) technology is proposed. Dual-mode FSIW filter of single resonant cavity is designed to degenerate two modes: folded TE201 and TE102, which results in two transmission zeros on each side of the pass-band. To further validate its characteristics, a dual-mode...
In this paper, two types of partial H-plane bandpass filter are proposed, which are implemented by substrate integrated folded waveguide (SIFW). These filters have advantages of compact, easy for integration, low cost, and mass-producible properties. The presented partial H-plane bandpass filter with H-plane septa has the similar frequency responses as those of traditional E-plane waveguide filter...
A three order cross-coupling FSIW (Folded Substrate Integrated Waveguide) cavity filter with three TZs (Transmission Zeroes) is proposed firstly. By the merit of the LTCC (Low-Temperature Co-fired Ceramic) technology, the substrate area occupied by the filter is reduced by approximately 50% compared with the traditional SIW filter, and it still exhibits a sharp frequency selection performance. To...
This paper proposes an image processing approach for real-time target tracking and obstacle avoidance for mobile robot navigation in an indoor environment using two cameras. Several image processing techniques which include the averaging filter, edge-detection, erosion and dilation, and color segmentation are combined to find the target and obstacles. Then one can compute the angular position of the...
An improved SIFW structure is proposed for the first time in this paper. Base on the new structure, two novel millimeter-wave SIFW BPFs have been analyzed and designed in this paper. Through the cross-coupling, the filters could provide TZs on lower and higher stopband which greatly enhance the side-band rejection. LTCC technology is also implemented to realize further compact size of this filter...
In this work, we propose a novel millimeter-wave SIW bandpass filter (BPF) that combines the technology of E-plane iris filter, SIW and LTCC. This filter with equivalent E-plane iris mounted in SIW is buried in LTCC substrates, and has a pass bandwidth from 34.1GHz to 35.9GHz. The insertion loss is less than 1.8dB and the return loss is better than 21dB in the entire pass band.
In this paper, a design of narrowband cavity LTCC bandpass filter was presented, including basic synthesis, structure configuration and EM-simulation. According to full-wave EM simulation, insertion loss was less than 0.9 dB in the passband (34.5 GHz - 35.5 GHz) . At last, topology of the embedded LTCC BPF was in harmony with the whole LTCC transceiver module and can be realized very easily by LTCC...
A compact high-selective stripeline SIR bandpass filter based on LTCC technology has been proposed in this study. Through the cross-coupling, the filter could provide a single pair of transmission zeros (TZs) near the passband, which greatly enhance the side-band rejection. Due to the optimization of impedance rate of the SIR, we could not only reduce the filter size, but also control the spurious-mode...
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