Band-rejection filter containing coaxial resonators installed in antenna-feeder path of stationary and mobile radio units, has three four-inch coaxial resonators arranged in series in one row with each other and with four two-inch resonators, and connected to each other by quarter-wave coaxial cable
	EGOROV R V; IVANOV K V; MIKHEEV D A
	2024-12-04
专利权人	LAB RADIOCOMMUNICATION LLC (RADI-Soviet Institute)
申请日期	2024-12-04
专利号	RU232584-U1
成果简介	NOVELTY - The band-rejection filter has four two-inch coaxial resonators that are arranged in two rows. The three four-inch coaxial resonators (2) are arranged in series in one row with each other and with four two-inch resonators. The resonators are connected to each other in series by quarter-wave coaxial cables (4) of inter-resonator connections. The four two-inch coaxial resonators are formed by a single profile made of aluminum alloy in the form of a solid-drawn profile of square cross-section with specific dimensions and divided by internal partitions into four equal cavities. USE - Band-rejection filter containing coaxial resonators installed in antenna-feeder paths of stationary and mobile radio units. ADVANTAGE - The radio frequency filters ensures the simultaneous independent operation of radio unit for transmitting speech and data in the meter frequency range, and operates with a small frequency spacing when such filters are installed in antenna-feeder paths of stationary and mobile radio means in conditions of limited dimensions. The band-rejection filter ensures simultaneous operation with permissible mutual interfering effects of closely located radio equipment with a separation of their operating frequencies of 250 kHz or more in the meter frequency range. The quality factor of the filter is increased to ensure the operation of radio equipment with a frequency spacing of 250 kHz or more in the meter frequency range. The increase in the filter quality factor is achieved by increasing the size of the coaxial resonators and the size of the exciting elements of the coaxial resonators of the band-rejection filter. The frequency spacing of channels of 250 kHz and more in the meter frequency range and the high level of suppression allow the use of a band-rejection filter in a limited size for decoupling transceivers of stationary and locomotive radio equipment operating in the frequency band of 155.000-1156.000 MHz with low insertion losses in the antenna-feeder path. The band-rejection filter also provides the ability to mechanically reconfigure with a change in the assignment of pass/reject bands within the operating band of 150,000-156,000 MHz. DESCRIPTION OF DRAWING(S) - The drawing shows a front view of the band-rejection filter. 1Single profile 2Four-inch coaxial resonator 3Front trough-shaped panel 4Quarter-wave coaxial cable 5Input
IPC 分类号	H01Q-005/30
国家	俄罗斯
专业领域	信息技术
语种	英语
成果类型	专利
文献类型	科技成果
条目标识符	http://119.78.100.226:8889/handle/3KE4DYBR/14249
专题	中国科学院新疆生态与地理研究所
作者单位	LAB RADIOCOMMUNICATION LLC (RADI-Soviet Institute)
推荐引用方式 GB/T 7714	EGOROV R V,IVANOV K V,MIKHEEV D A. Band-rejection filter containing coaxial resonators installed in antenna-feeder path of stationary and mobile radio units, has three four-inch coaxial resonators arranged in series in one row with each other and with four two-inch resonators, and connected to each other by quarter-wave coaxial cable. RU232584-U1[P]. 2024.

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