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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 7. Отображено 7.
25-03-2015 дата публикации

Broadband dual-polarization feed source

Номер: CN104466412A
Автор: NIU CHUANFENG, GENG JINGCHAO, ZHAO DONGHE, YANG GUODONG, LIU CHAO, JIANG BO, LIN ZHANZHONG, WU XU, HE QIHONG
Принадлежит:

The invention discloses a broadband dual-polarization feed source in the field of wireless communication and radio astronomy. The broadband dual-polarization feed source is composed of four sets of radiation oscillators and two impedance synthetic printed boards. The radiation oscillators form a log-periodic dipole array, the two sets of radiation oscillators which are placed in an orthogonal mode are connected with the two impedance synthetic printed boards which are placed in an orthogonal mode respectively, the two ends of each left metal strap of the impedance synthetic printed boards are connected with corresponding left pins of the two sets of radiation oscillators in a one-to-one corresponding mode, the two ends of each right metal strap of the impedance synthetic printed boards are connected with corresponding right pins of the two sets of radiation oscillators in a one-to-one corresponding mode, and therefore the switching to two coaxial interfaces from eight ports is achieved.

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Номер записи: 1
15-04-2015 дата публикации

Broadband feed-source network

Номер: CN104518284A
Автор: NIU CHUANFENG, LIU CHAO, GENG JINGCHAO, YANG GUODONG, ZHAO DONGHE, SUN LIANG, DONG XIAOJUAN, JIANG BO, WU XU, HE QIHONG, MA WANLEI, WANG ZHIWEI, ZHANG TINGHENG
Принадлежит:

The invention discloses a broadband feed-source network in the fields of wireless communication and radio astronomy. The broadband feed-source network comprises two impedance-matching printed boards and a circular polarization bridge, wherein the circular polarization bridge is connected with the two impedance-matching printed boards put in an orthogonal manner, so an impedance value of a wide end of a metal micro-strip line of each impedance-matching printed board is 1/4 of an impedance value of a narrow end of the metal micro-strip line and a narrow end of a corresponding micro-strip ground wire, the feed is simplified and the performance is good. The feed network structure is simple, the feed loss is low, the feed efficiency is high, the structure is compact, the processing cost is low, and the feed network is especially suitable for a feed source or an antenna working in a broadband dual line polarization or dual circular polarization situation.

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Номер записи: 2
25-06-2014 дата публикации

Optical signal to noise ratio monitor device and optical signal to noise ratio monitor method

Номер: CN103888187A
Автор: ZHAO DONGHE, XI LIXIA, ZHANG XIAOGUANG, TANG XIANFENG, ZHANG WENBO
Принадлежит:

The invention provides an optical signal to noise ratio monitor device and an optical signal to noise ratio monitor method. The optical signal to noise ratio monitor method comprises steps of processing data on a transmission terminal to obtain transmission information, wherein the transmitted information transmitted by an optical fiber link is going through analog-digital conversion through a coherent receiver, processing the converted data and performing optical signal to noise ratio (OSRN)monitoring according to the processed data, obtaining the signal to noise ratio of signals and OSNR through extracting the signal power so as to perform monitoring on OSNR of each frame to realize OSNR monitoring in real time.

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Номер записи: 3
22-08-2023 дата публикации

Airborne shaped sleeve antenna

Номер: CN116632515A
Автор: WANG LIANG, WANG XIAN, LI TAO, ZHAO DONGHE, XIAO SONG, LU FEIYU, CHANG WEILIN
Принадлежит:

The invention discloses an airborne shaped sleeve antenna, and belongs to the technical field of wireless communication. The antenna comprises an antenna oscillator, a sleeve, a metal reflecting plate, a radio frequency cable assembly and an antenna housing, the sleeve is on the upper surface of the metal reflecting plate. The radio frequency cable assembly is located in the sleeve, and the central axes of the two coincide. The antenna oscillator is of a cylindrical structure with an open top and a sealed bottom surface; an inner core of the top section of the radio frequency cable assembly is exposed and is connected with the bottom surface of the antenna oscillator; the bottom end of the radio frequency cable assembly penetrates through the metal reflecting plate and is connected with a radio frequency connector on the lower surface of the metal reflecting plate; the antenna housing covers the antenna oscillator, the top end of the antenna housing is higher than the top end of the radio ...

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Номер записи: 4
01-08-2023 дата публикации

Log-periodic antenna with deformed oscillators

Номер: CN116526124A
Автор: WANG LIANG, WANG XIAN, LI TAO, LIU XIN, DONG CHANGSHENG, ZHAO DONGHE, XIAO SONG, HE YINGRAN, LU FEIYU, CHANG WEILIN
Принадлежит:

The invention discloses a deformation oscillator log-periodic antenna, and belongs to the technical field of radio communication. The number of the assembly lines is two, and the two assembly lines are symmetrical about the middle line, are arranged at an acute angle and are not in contact with each other; each assembly line is provided with a plurality of combined oscillators, the assembly lines and the combined oscillators connected with the assembly lines are located in the same vertical plane, and the vertical plane where the two assembly lines are located is perpendicular to the vertical plane; the combined oscillators belonging to the two assembly lines are symmetrical by rotating 180 degrees relative to the middle line; each combined vibrator comprises a plurality of vibrator arms; the oscillator arms are sequentially arranged from short to long along the assembly line from top to bottom, and the oscillator arms with adjacent lengths are respectively positioned on different sides ...

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Номер записи: 5
08-04-2015 дата публикации

Broadband dual-linearly-polarized or dual-circularly-polarized feed source

Номер: CN104505591A
Автор: NIU CHUANFENG, LIU CHAO, GENG JINGCHAO, YANG GUODONG, ZHAO DONGHE, SUN LIANG, DONG XIAOJUAN, JIANG BO, WU XU, HE QIHONG, MA WANLEI, WANG ZHIWEI, ZHANG TINGHENG
Принадлежит:

The invention discloses a broadband dual-linearly-polarized or dual-circularly-polarized feed source in the fields of wireless communication and radio astronomy. The broadband feed source consists of four groups of radiation oscillators, 2 impedance-matched printed boards and a circularly-polarized electric bridge, wherein the radiation oscillators are log periodic dipole arrays, and are connected with the two impedance-matched printed boards which are orthogonally arranged, so that impedance values of the wide ends of metal microstrip lines of the impedance-matched printed boards are 1/4 of impedance values between left and right pins of the radiation oscillators, so that feeding is simplified, and high performance is achieved. The broadband feed source is simple and compact in structure, low in feed loss and machining cost, high in feed efficiency and particularly applicable to a feed network of a feed source or antenna working under a broadband dual-linear-polarization or dual-circular-polarization ...

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Номер записи: 6
25-03-2015 дата публикации

Balun combiner integrated feed network

Номер: CN104466411A
Автор: SUN LIANG, NIU CHUANFENG, LIU CHAO, GENG JINGCHAO, ZHAO DONGHE, YANG GUODONG, MA WANLEI, ZHANG TINGHENG, LU FEIYU
Принадлежит:

The invention discloses a balun combiner integrated feed network in the field of wireless communication and radio astronomy. The balun combiner integrated feed network comprises a first impedance matching printed board and is characterized in that the front face of the impedance matching printed board is provided with two gradual-change type metal microstrip lines, narrow ends of the two metal microstrip lines are each provided with an antenna connector, wide ends of the two metal microstrip lines are connected with coaxial port inner conductors respectively, the back face of the impedance matching printed board is provided with two gradual-change type metal microstrip ground wires, narrow ends of the two metal microstrip ground wires are each provided with an antenna connector, and wide ends of the two metal microstrip ground wires connected with coaxial port outer conductors respectively. The balun combiner integrated feed network has the advantages that impedance conversion is achieved ...

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Номер записи: 7