毫米波天文 的英文怎麼說
中文拼音 [háomǐbōtiānwén]
毫米波天文
英文
millimeter-wave astronomy- 毫 : Ⅰ名1 (細長而尖的毛) fine long hair 2 (毛筆) writing brush 3 (姓氏) a surname Ⅱ副詞(一點兒 ...
- 米 : Ⅰ名詞1. (稻米) rice 2. (泛指去殼或皮的可吃的種子) shelled or husked seed 3. (姓氏) a surname Ⅱ量詞(公制長度的主單位) metre
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 文 : Ⅰ名詞1 (字) character; script; writing 2 (文字) language 3 (文章) literary composition; wri...
- 毫米 : millimetre (mm. ); [力學] millimeter of mercury (mmhg)毫米汞柱 milli hg
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Mixers are the key components of many microwave and millimeter - wave systems. the super - heterodyne receiver is always applied in modern communication system, mixer becomes the key component as is at the first part of system. but it is more and more difficult to get the choiceness lo source of the same band with the system is working at high frequency especially in the millimeter - wave. sub - harmonic mixer is a good solution to this problem now. in this circuit we need just half 、 quarter 、 even 1 / 8 of the rf signal frequency. in this paper the design and fabricate of sub - harmonic hmic mixers ( 2, 4 ) at w - band are introduced
混頻器是微波通信、射電天文學、雷達、等離子物理、遙控、遙感、電子對抗,以及許多微波測量系統中至關重要的部件。在現代通信系統中,毫米波頻段通常採用超外差接收機,混頻器作為第一級就成為關鍵部件。由於在毫米波頻段,同頻段高性能的本振源成本高,技術難度大,採用分諧波混頻技術是解決此問題的有效途徑,只需射頻頻率1 / 2 、 1 / 4甚至1 / 8的本振頻率即可實現混頻。Two astronomers at the university of british columbia observed the subaru deep field heros with the submillimetre scuba camera at the james clerk maxwell telescope a 15 metre aperture radio telescope, also on mauna kea
加拿大英屬哥倫比亞大學兩位天文學家,亦利用同樣位於莫納克亞山上的麥克斯偉望遠鏡james clerk maxwell telescope ,口徑15米的亞毫米波段射電望遠鏡,對從sdf中所發現的四個hero進行觀測。This paper consists of 3 sections : the theory and analysis of the conformal phased array, design of conformal array microstrip patch, and design and analysis of the millimetre microstrip conformal phased array
本論文主要包括共形相控陣天線理論分析、共形陣列微帶貼片單元的設計、毫米波共形相控陣陣列的設計與分析等三部分內容。Swas, submillimeter wave astronomy
亞毫米波天文衛星This dissertation develops two millimeter waves microstrip antenna arrays which can be applied to the millimeter wave radar, the communication and the identification for friend - or - foe
本文所研製的兩個毫米波微帶天線陣可應用於毫米波雷達,通信與敵我識別系統等方面。They focus on submillimeter galaxies, so called because astronomers see them in light with a wavelength a bit shorter than one millimeter
他們鎖定的是次毫米星系,之所以這樣稱呼,是因為天文學家是在比毫米稍短的波長中看到它們的。Submillimeter space astronomy
亞毫米波空間天文Abstract : the importance of study on submillimeter wave ( smmw ) is introduced. the applications of smmw laser on basic disciplines, astronomy, physics, medicine, biology, military affairs, communication, engineering etc are reviewed and forecasted
文摘:闡述了亞毫米波研究、開拓的重大意義,重點介紹和分析了亞毫米波激光在基礎學科、天文物理、醫學生物學研究以及軍事、通信、工程等領域的應用及應用前景。分享友人