暖呼呼的感！屎官自己祝生日，汪星人落表示：你＠horn antenna

2022-03-13 02:03:57| 人15| 回0 | 上一篇

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暖呼呼的感！屎官自己祝生日，汪星人落表示：你

屎官汪星人祝生日，不知情的汪星人看蛋糕被抬出的一那瞬呆若木，一疑惑表示：是偶的？

外媒THE DODO的，汪星人「雅典娜」（Athena）於了，然雅典娜的生日可以就平凡的度，可是雅典娜暖心的家人想。於是，他定雅典娜度了一又又喜的生日！雅典娜的主人「海利威」（Hayleigh Powell）和家人想要他的狗狗在生日天有更多的和。最好的部分然要登。

家中大佬的汪星人雅典娜即迎接自己的生日，屎官定一令意想不到的生日喜！

特雅典娜的生日蛋糕看起超，相信雅典娜一定喜。

生日必不可少了的莫非就是生日歌和蛋糕。

「我把蛋糕藏了起，保它有，的就是要它喜」

「我把蛋糕捧出，雅典娜再心不了」

「看它心的子真的很奇妙」，威，「我很肯定它得很特」。

雅典娜看人捧著蛋糕，自己高歌唱生日快歌，上那受若的模超可啦！

雅典娜甚至低彷在一般，希望全家人都能得心心。

威，雅典娜和他的兄弟姐妹不是物而是家人。因此一小小生日派，一忘的回非常重要！

原文出自THE DODO。

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HORN ANTENNA CALIBRATION

1.) The dual-polarization (HQ-Series or HR-Series) antenna has an electronic switch that may simultaneously test horizontal and vertical or +-45deg polarization, as well as a couple that can test circular polarization.
2.) The dual-polarized antenna (HQ-Series or HR-Series) is mounted on the chamber's bracket or wall (this is the way to test the antenna)
3.) If the dual-polarized antenna is being used for something else and calibration is needed, we can certainly assist.
4.)Single-polarized antennas (HA-Series, HB-Series, and other antennas) are commonly used to replace the antenna method's calibration antenna. When HA calibration is utilized, the calibration site is lost (patch loss uses a network analyzer) Enter the antenna's gain (minus the gain of the antenna, equal to the address of the object under test, return to zero)

5.) There is only one technique to compute antenna gain. The path loss patch loss subtracts the antenna's gain and substitutes the antenna under test to obtain the antenna's gain.
6.) Rotate the object under test after calculating the antenna route loss and gain calibration numbers (requires a rotating table, 2D test)
7.) If you want to read the horizontal and vertical antenna patterns at the same time with a dual-polarized antenna, an RF electronic switch, and a 3D rotating table, you can get the antenna pattern of the antenna (3D testing requires the use of HA-Series calibration twice, Horizontal and vertical or +-45deg),

8.) Antennas can be tested in a variety of methods (if you have any questions, you can provide simple photos or hand-drawn pictures, and we can assist you in the test plan)

9.) To ensure that the test value of the antenna is in compliance with international standards, all Horn products developed by FT-RF have passed internal calibration and testing in collaboration with external national research institutions, as well as third-party confirmation tests.

10.)In most ISO systems, we will demand external calibration of our test items every three years and internal self-calibration every other year. You can use the network with a set of HA-Series antennas. Calculate the path's loss using an analyzer (but usually at least three antennas can be used for internal correction, we can do internal correction by replacing the three antennas in turn)

11.)The antenna can be shipped back to Taiwan for calibration once every three years (you must know the shipping cost and the economic impact), or you can purchase a fresh set of calibrated antennas (we will calibrate the antenna internally).

11.)The antenna can be sent back to Taiwan for calibration once every three years (you must know the cost of shipping and the economic impact), or you can purchase a new set of calibrated antennas (we will calibrate the antenna internally or It is externally corrected and then sent to the customer)

12.) Antenna calibration is mostly done by an external calibration unit that must bear the ISO17025 and TAF logos.

13.)For the difference comparison test, you can use internally calibrated antennas, self-calibration, and ISO17025 antennas; this approach is frequently used in the ISO9001 series.

Double-Ridged Horn Antenna
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The horn antenna is a broadband passive device, shaped like a pyramid horn, referred to as a TEM antenna, which guides the beam of radio waves at a precise frequency. FT-RF Double Ridged Horn antennas have frequency capabilities ranging from 400MHz to 40GHz depending on type and style. These series are characterized by a huge frequency range and extremely high input powers. With increasing frequency, the gain rises to a maximum of 18 dBi. At higher frequencies, the increased gain compensates for the increasing cable losses.

The advantages of Horn antenna:

- Wide bandwidth: Because the horn antenna has no resonant parts, it can function over a wide range of frequencies.

- Easy waveguide interface: These antennas are very easy to interface to waveguide due to their shape, but they can also be designed with a transition so that a regular coaxial feeder can be used.