Abstract: Embodiments provide a method for preparing non-denatured type II collagen and a product thereof. In the embodiments, chicken breast cartilage is adopted as raw material, through the steps of selecting materials, cleaning, pulverizing, hydrolyzing by enzyme, drying, pulverizing, sieving, etc., the product with a water absorption ratio 10-13 times, a volume expansion ratio 5-7 times, a natural long-chain structure of non-denatured type II collagen retained, and the protein having a content not less than 15% is obtained. Under the premise of improving the content, water absorption and volume expansion coefficient of the non-denatured type II collagen, the product containing the non-denatured type II collagen prepared by the present disclosure has the advantages of fast extraction process and good suspension performance of the product solution, and has good market application prospects.

Abstract: The present invention discloses a U-type superconductive microstrip resonator and a filter corresponding to the same. The U-type superconductive microstrip resonator is an asymmetric U-type configuration formed by folding the superconductive microstrip, its total length is a half of the wavelength corresponding to the center frequency of the filter constituted by them. A filter can be constituted by a number of said U-type superconductive microstrip resonators as required. In this filter, these U-type microstrip resonators are arranged in parallel in a manner that the longer sides direct a same direction, or in a manner that every two adjacent U-type superconductive microstrip resonators are symmetric about an axis. The filter constituted by said U-type superconductive microstrip resonators can not only achieve the same specification as an open-loop superconductive microstrip filter with a same number off sections, but also achieve a smaller size than the open-loop superconductive microstrip filter.

Abstract: The present invention discloses a U-type superconductive microstrip resonator and a filter corresponding to the same. The U-type superconductive microstrip resonator is an asymmetric U-type configuration formed by folding the superconductive microstrip, its total length is a half of the wavelength corresponding to the center frequency of the filter constituted by them. A filter can be constituted by a number of said U-type superconductive microstrip resonators as required. In this filter, these U-type microstrip resonators are arranged in parallel in a manner that the longer sides direct a same direction, or in a manner that every two adjacent U-type superconductive microstrip resonators are symmetric about an axis. The filter constituted by said U-type superconductive microstrip resonators can not only achieve the same specification as an open-loop superconductive microstrip filter with a same number off sections, but also achieve a smaller size than the open-loop superconductive microstrip filter.