Cassegrain antenna mounted in aircraft nose cone
阅读：310发布：2022-11-17
专利汇可以提供Cassegrain antenna mounted in aircraft nose cone专利检索，专利查询，专利分析的服务。并且A forward-facing aircraft antenna of modified Cassegrain configuration, having a flat plate main dish and a sub-dish which has a reflecting surface chosen from among surfaces of revolution that require two or more reflections to bring a wave parallel to the axis of revolution to a substantial point focus.，下面是Cassegrain antenna mounted in aircraft nose cone专利的具体信息内容。
1. A forward-looking aircraft antenna of substantially Cassegrain configuration, comprising a main dish in flat plate form, and a sub-dish forward of the main dish with a reflecting surface in the form of a surface of revolution generated about a fore-and-aft axis passing through the center of the main dish, said sub-dish surface being chosen from the class of surfaces of revolution that require more than a single reflection at said sub-dish to bring a wave approaching from said main dish anD parallel to said axis of revolution to a substantial point focus on said axis.
2. An antenna according to claim 1, wherein the sub-dish also constitutes the external aircraft radome.
3. An antenna according to claim 1, wherein the chosen surface requires two reflections to achieve a substantial point focus.
4. An antenna according to claim 3, wherein the sub-dish surface has an equation of the form: x/F (1 - (y/2F)2) - (y/F) Square Root 1 + (y/2F)2 where F is the focal length.
5. An antenna according to claim 4, wherein the angular spread of the feed to the sub-dish, measured from the axis of revolution of the sub-dish surface, is substantially 36* .
6. An antenna according to claim 1, wherein the chosen surface requires more than two reflections to achieve a substantial point focus and has an equation of the form: y A(1 - x) + B (1 - x2) where A and B are empirically determined constants for any particular number of reflections.
7. An antenna according to claim 6, wherein the number of reflections is three, A 1.4226 and B 0.0774.
8. An antenna according to claim 6, wherein the number of reflections is four, A 0.3358 and B 0.0392.
9. An antenna according to claim 6, wherein the number of reflections is five, A 0.2751 and B 0.0249.
| 标题 | 发布/更新时间 | 阅读量 |
|---|---|---|
| 一种运载飞行器及载荷投送方法 | 2020-05-08 | 385 |
| 一种计算机数字控制方法与系统 | 2020-05-11 | 476 |
| 多旋翼飞行器 | 2020-05-11 | 302 |
| 用于显示图像的风扇组件 | 2020-05-11 | 746 |
| 一种飞行器着陆缓冲气囊用进气阀装置 | 2020-05-11 | 365 |
| 一种模拟红外特征的方法和靶机 | 2020-05-12 | 644 |
| 快速装配的降落伞绳分离组件、飞行器回收用降落伞系统 | 2020-05-12 | 496 |
| 轮辐式马达、车辆用马达、无人飞行器以及电动助力装置 | 2020-05-08 | 885 |
| 一种三舵机直驱共轴旋翼系统及控制策略 | 2020-05-12 | 642 |
| 一种多旋翼飞行器及其折叠臂连接件 | 2020-05-13 | 409 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。
分析报告
专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。
QQ群二维码
意见反馈
意见反馈