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    • 45. 发明授权
    • Small-caliber, high-performance broadband radiator
    • 小口径,高性能宽带散热器
    • US09276328B2
    • 2016-03-01
    • US14147873
    • 2014-01-06
    • Peng ChenXiao-Liu DuYu WangYan-Kui Su
    • Peng ChenXiao-Liu DuYu WangYan-Kui Su
    • H01Q21/26H01Q1/24H01Q21/08
    • H01Q21/26H01Q1/246H01Q21/08
    • A small-caliber, high-performance broadband radiator allows two unit arms of the first and second group of dipoles to be folded inwards, an included angle of 40°-50° is formed between two unit arms of the first/second groups of dipoles and the first/second unit racks, and the unit arms of the first and second groups of dipoles are arranged linearly at interval while flexural loading sections are provided and also connected by dielectric medium. Hence, the broadband radiator allows significant reduction of the aperture of the broadband radiator, and there is a larger adjustment space for the gap of the radiator array, so the interference of low and high bands is less. This allows for improved performance, thus reducing the configuration size and manufacturing cost of antennas, and creating better industrial benefits with improved applicability.
    • 小口径高性能宽带辐射器允许第一和第二组偶极子的两个单元臂向内折叠,在第一/第二组偶极子组的两个单元臂之间形成40°-50°的夹角 并且第一/第二单元机架以及第一和第二组偶极子的单元臂在间隔时间线性布置,同时提供弯曲加载部分并且还通过电介质连接。 因此,宽带辐射器允许显着降低宽带辐射器的孔径,并且对于散热器阵列的间隙存在较大的调节空间,因此低频带和高频带的干扰较小。 这允许改进的性能,从而减少天线的配置尺寸和制造成本,并且通过改进的适用性创造更好的工业效益。
    • 46. 发明申请
    • METHOD FOR SYNTHESIZING HOMOPOLYMER N-VINYL BUTYROLACTAM WITH SUPER-LOW MOLECULAR WEIGHT AND SUPER-LOW RESIDUAL MONOMER
    • 用于合成具有超低分子量和超低残留单体的均聚物N-乙烯基丁二酰胺的方法
    • US20150141600A1
    • 2015-05-21
    • US14401743
    • 2012-07-23
    • Yu WangWei LiuZhan Chen
    • Yu WangWei LiuZhan Chen
    • C08F24/00
    • C08F24/00C08F4/38C08F6/003C08F126/06C08L39/04
    • The present invention relates to a synthesis method of ultra low molecular weight homopolymerized N-vinyl butyrolactam with ultra low residual monomer content, which comprises: using N-vinyl butyrolactam monomers and water with the mass ratio of 3:17˜8:12, then based on the N-vinyl butyrolactam monomers, using 0.5%˜5.0% by weight of initiators, 0.1%˜5.0% by weight of a catalyst, and 0.1%˜10% by weight of a molecular weight regulator; in the presence of an inert gas, adding the above mentioned raw materials in batches, adjusting the pH of the reaction system to 7.0-8.0 with an activator, reacting at the polymerization temperature of 60-85° C.; finally adding a peroxide and keeping the temperature for 2 hours, to obtain an aqueous solution of ultra low molecular weight homopolymerized N-vinyl butyrolactam, drying the aqueous solution to obtain a powdery ultra low molecular weight homopolymerized N-vinyl butyrolactam with ultra low residual monomer content, whose K value is 12-17, whose molecular weight is 2000-15000, and whose residual monomer content is less than 10 ppm, so the present invention is designed skillfully and simple in preparation, the residual monomer content of the ultra low molecular weight homopolymerized N-vinyl butyrolactam with ultra low residual monomer content prepared is less than 10 ppm, and the K value is 12-17, therefore the present invention is suitable for large-scale popularization.
    • 本发明涉及具有超低残留单体含量的超低分子量均聚N-乙烯基丁内酰胺的合成方法,其包括:使用N-乙烯基丁内酰胺单体和质量比为3:17〜8:12的水,然后 基于N-乙烯基丁内酰胺单体,使用0.5重量%〜5.0重量%的引发剂,0.1重量%〜5.0重量%的催化剂和0.1重量%〜10重量%的分子量调节剂; 在惰性气体的存在下,分批加入上述原料,用活化剂将反应体系的pH调节至7.0-8.0,在聚合温度为60-85℃下反应; 最后加入过氧化物并保持温度2小时,得到超低分子量均聚N-乙烯基丁内酰胺水溶液,干燥该水溶液,得到具有超低残留单体的粉状超低分子量均聚N-乙烯基丁内酰胺 其K值为12-17,分子量为2000-15000,残留单体含量小于10ppm,本发明设计巧妙简单,超低分子量的残留单体含量 制备的超低残留单体含量的均聚的N-乙烯基丁内酰胺重量小于10ppm,K值为12-17,因此本发明适用于大规模普及。