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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 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 2. Отображено 2.
11-08-2023 дата публикации

Switchable absorption and transmission integrated material with polarization selectivity and high roll-off characteristic

Номер: CN116581552A
Автор: TIAN JING, SHI XIAOZHOU, YE LI, LIANG HENG, ZHOU ZHOU, CHEN BO, LEI SHIWEN, YANG WEI, SUN KAI, HE ZIYUAN, BAO YONGFANG, HU HAOQUAN
Принадлежит:

The invention belongs to the technical field of absorption and transmission integrated materials, and particularly provides a switchable absorption and transmission integrated material with polarization selectivity and a high roll-off characteristic, which is used for realizing switching among an absorption and transmission integrated mode, a polarization selection mode and a wave absorption mode. The frequency selective surface is composed of two impedance layers and a frequency selective surface body. In addition, PIN diodes loaded on the active impedance layer and the FSS can be independently controlled in orthogonal polarization through bias signals to achieve polarization selectivity, and a transmission zero point is introduced into the FSS design to improve the roll-off characteristic of a transmission frequency band of the FSS. Meanwhile, the FSS unit is of a symmetrical structure, any linearly polarized incident electromagnetic wave can be gated, and high practicability is achieved ...

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Номер записи: 1
02-12-2015 дата публикации

Self -propelled sky parking building in inner ring double -spiral structure lane

Номер: CN0204826793U
Автор: YU GUOYING, BAO YONGFANG, LIU JINLAN
Принадлежит:

The utility model provides a self -propelled sky parking building in inner ring double -spiral structure lane includes the parking floor and formed at each the center of floor, and run through the vertical passage of whole floor, still include DNA form double -spiral structure runway in the vertical passage, DNA form double -spiral structure runway is spiraled and forms with antiparallel mode by two complete independence runways, every layer the parking floor all has driving linking passageway and DNA form double -spiral structure runway to be connected, the driving region that the driving links up on passageway and the parking floor communicates with each other. Technical scheme's beneficial effect lies in: realized the complete one -way traffic of vehicle, the traffic accident that probably exists when effectively avoiding the vehicle subtend to travel, the influence of parking action can not received in vertical traffic simultaneously to security and parking efficiency have been improved ...

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Номер записи: 2