Horn antennas are very popular from 200 MHz frequency to higher frequencies up to 40GHz. The horn antenna has a distinctive design that is enlarged towards the end. Horn antennas typically feature a directional radiation pattern with a high antenna gain of 10-20 dBi, some antennas have a higher gain such as the standard horn antenna up to 25 dBi. Horn antennas feature a low VSWR and a wide impedance bandwidth.
The horn is suitable for both transmitting and receiving purposes, with applications:
- - Antenna measurement
- - Communication systems
- - Satellite tracking systems
- - Radar Detection System
- - Surveillance System
- - Electromagnetic Compatibility Testing (EMC test)
Recommended Accessories
- - Antenna Tripod: easy and fast-changing position. 100% stable after installing.
- - SMA Cable: High-quality special SMA cable
大陸中心／綜合報導
▲古代皇帝喜歡什麼，妃子多半只能順從。（示意圖／翻攝自百度百科）
明太祖朱元璋是歷史上少有的草根出身的開國皇帝，他出生在一個貧苦農民的家庭，小時候放過牛、當過和尚、做過乞丐，最後靠著自己的努力，一步一步往上爬，終於成為受萬人景仰的皇帝。從一個放牛娃成為大明的開國皇帝，這樣的人生也算是傳奇了；不過正是因為是貧苦出身，他做了皇帝之後有一個特殊的習慣，幾乎每天都要來一次，後宮的嬪妃們都叫苦連天。
▲朱元璋幼時困苦，當過和尚、做過乞丐。（示意圖／翻攝自百度百科）
朱元璋在他的父母去世後，在走投無路的情況下，只好去皇覺寺當和尚；有一天，朱元璋外出化緣餓暈了過去，一位婆婆救了他，把他帶回家，等他醒來後，婆婆給他端來一碗熱湯。朱元璋覺得這是世界上最好吃的東西。
What does an EMC test?
Equipment or systems that create electromagnetic interference can endanger human health and the environment. As a result, Electromagnetic Compatibility testing is mandatory in many countries. All communication and wireless goods on the market must pass EMC tests to verify their safety.
EMC testing is important:
In the global markets, EMC compliance is required. EMC testing is a critical step in achieving regulatory requirements, increasing product performance, and lowering the risk of nonconformance. In order to be competitive in the market, third-party EMC conformity assessment and testing by trusted organizations are also required.
EMC testing is required for the following products:
- Communication technology
- Industrial equipment
- Household appliances lighting equipment
- Audio equipment
- Measuring equipment radio equipment
- Others.
We offer a full host of antennas (aka EMC antenna or EMC testing antenna) to provide you with quick, affordable solutions to your EMC/EMI and RF microwave testing needs
- Standard Gain Horn antenna
- Open Boundary Double Ridged Horn Antenna
- Open Boundary Quad-Ridged Horn Antenna
- Double Ridged Horn Antenna
We recently launched the HA-02M03G01-NF, which is considered an upgrade version of HA-02M03G-NF with attributing to the persistent research of FT-RF CEO - Mr. Chen and the RD team. This becomes one of the largest designs in the line of Double Ridged Antennas, despite the fact that the product weighs only 15kg.
This product's specifications are listed below. With a frequency range of 200 MHz to 3 GHz, it was tested at 3 different distances: 1M, 3M, and 10M.
他從來沒有吃過這麼美味的食物，便問婆婆這湯的名稱。婆婆想了一會兒說：「珍珠翡翠白玉湯」，朱元璋暗自將此名記在心中。
後來朱元璋當了皇帝，想起了當年那碗湯，便要求御膳房的廚師再做一碗。御廚根據朱元璋殘存的記憶做了出來，可是他嚐了之後，覺得這味道就是不對，很多御廚因此遭受重罰；於是朱元璋派人去找當年的婆婆。找來婆婆之後，婆婆告訴了朱元璋怎麼做，其實這湯的配料就是大米、菠菜和豆腐碎末，因為都是很普通的食材，有錢人根本不願意吃。
▲朱元璋崇尚節儉，心繫百姓疾苦。（示意圖／翻攝自百度百科）
這碗湯不僅是救命湯，對於崇尚節儉的朱元璋來說，更是一道值得推廣的菜；後來朱元璋堅持每天要吃這道菜，並且讓自己的後宮嬪妃和他一起品嘗；但是他可以忍受，後宮的妃子們怎麼能夠長期忍受呢？她們吃慣山珍海味，怎麼會喜歡吃這種窮困人家的食物呢？不過，妃子們都知道朱元璋的個性，即使再怎麼不喜歡吃，也得乖乖吃下去，這讓妃子們覺得很痛苦；其實朱元璋這樣做是有意圖的，就是時刻提醒著自己不能忘記百姓的生活，天下以民為先。朱元璋雖然個性殘暴多疑，但不得不說，歷代歷朝能像他一樣心繫窮苦百姓的君主真的不多，令人敬佩！
