Collinear antenna array

（重定向自Collinear antenna）

(left & center) Collinear folded dipole arrays. Often used as base station antenna for dispatcher for police, fire, ambulance, and taxi services. (right) Directional antenna consisting of 4 collinear Yagi beam antennas.

Collinear dipole array on repeater for radio station JOHG-FM on Mt. Shibisan, Kagoshima, Japan

In telecommunications, a collinear antenna array is an array of dipole antennas mounted in such a manner that the corresponding elements of each antenna are parallel and collinear, that is they are located along a common line or axis.

Collinear arrays of dipoles are high gain omnidirectional antennas. A dipole has an omnidirectional radiation pattern when in free space and not influenced by any other conductors in that it radiates equal radio power in all azimuthal directions perpendicular to the antenna, with the signal strength dropping to zero on the antenna axis. The purpose of stacking multiple dipoles in a vertical collinear array is to increase the power radiated in horizontal directions and reduce the power radiated into the sky or down toward the earth, where it is wasted. They radiate vertically polarized radio waves. Theoretically, when stacking idealised lossless dipole antennas in such a fashion, doubling their number will produce double the gain, with an increase of 3.01 dB. In practice, the gain realized will be below this due to imperfect radiation spread and losses.

词汇	Collinear antenna
分类	英语词汇英语翻译词典
释义	Collinear antenna 英语百科 Collinear antenna array （重定向自Collinear antenna） In telecommunications, a collinear antenna array is an array of dipole antennas mounted in such a manner that the corresponding elements of each antenna are parallel and collinear, that is they are located along a common line or axis. Collinear arrays of dipoles are high gain omnidirectional antennas. A dipole has an omnidirectional radiation pattern when in free space and not influenced by any other conductors in that it radiates equal radio power in all azimuthal directions perpendicular to the antenna, with the signal strength dropping to zero on the antenna axis. The purpose of stacking multiple dipoles in a vertical collinear array is to increase the power radiated in horizontal directions and reduce the power radiated into the sky or down toward the earth, where it is wasted. They radiate vertically polarized radio waves. Theoretically, when stacking idealised lossless dipole antennas in such a fashion, doubling their number will produce double the gain, with an increase of 3.01 dB. In practice, the gain realized will be below this due to imperfect radiation spread and losses.
随便看	hip disarticulation prosthesis hip disease Hip dislocation Hip Dislocation,Congenital Hip Dislocations,Congenital hipdom hip drop Hip dysplasia Hip Dysplasia,Canine Hip Dysplasia,Congenital Hip Dysplasias,Congenital hipe Hipeernik HIPEG hip end HiPER Hiperbatch hiperbole Hipercilina Hiperco Hiperco alloy Hipercon alloy HiperLAN HiperLAN Hiper hiperloy 寄你几页情书是什么意思若惜情感语录图片高清是什么意思告白情书怎么包装是什么意思囧语录情感咨询app靠谱是什么意思情感在首饰设计上的表达是什么意思军婚情感告白语录简短精辟是什么意思韩文情感语录文案爱情是什么意思 100句情书美文是什么意思读书的情感文案短句是什么意思情感语录怕是他不被喜欢是什么意思欧美情感图片文案励志是什么意思扬绛情感语录是什么意思情感文案空白模板图片是什么意思放下歌词陈瑞表达什么情感是什么意思男女幽默情感文案简短有趣是什么意思 34岁女性相亲视频播放慧爱网挽回婚姻是真的吗刘国梁和马琳感情好吗怎么追女孩子的情话套路自己出轨了怎么挽回死心的男友表白文本长一点的名存实亡的婚姻要挽回吗相亲女孩问我过得好不好四十多岁的女性约会技巧与学神谈恋爱手游攻略如何发消息挽回冷战的男友婚姻家庭的感慨经典语录前男友一直想挽回我是什么心理水瓶男出轨了如何挽回感情破裂了怎么追回老婆约翰逊，J. 约速约阿希姆(菲奥雷的) 纪律纬书纯化了的哲学纯归纳纯洁派纯白纯粹主义纯粹主体纯粹假言推理纯粹关系推理纯粹客体纯粹思维创造论太阳天秤水星天秤的人脾气好吗太阳天秤座水星白羊女生靠谱吗太阳天秤座和水星天秤座的区别上升射手水星天秤的人脾气好吗太阳天秤座水星白羊座女生人怎么样 10宫水星天秤座代表什么水星天秤和金星天秤座区别水星天秤座喜欢什么水星天蝎金星天秤人的性格脾气怎么样水星天秤座的男人的内心需求水星天秤座什么意思太阳射手水星天秤的人的性格脾气怎么样太阳天秤座水星狮子的人的性格脾气怎么样太阳天秤座水星水瓶男生靠谱吗上升处女座水星天秤的人怎么样