Waveguide standard gain horns, also known as Waveguide input, are pyramidal-shaped broadband passive devices. Standard gain horns are also used to calibrate other antennas and evaluate their gain. Aluminum is used as the waveguide material in the typical gain horn. EMC antenna
Depending on the type and style, our broadband waveguide horns can operate at frequencies ranging from 350 MHz to 40 GHz. RoHS compliance is found in many of our RF and microwave gain horns.
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.
- Easy to make, simple design.
The horn is suitable for both transmitting and receiving purposes, especially suitable for EMC and immunity test measurements.
Recommended Accessories
- Antenna Tripod: easy and fast-changing polarisation. 100% stable handling
- SMA Cable: High-quality special SMA cable
記者陳韋帆／台北報導
▲台電近期頻傳停電，王美花今日在立院提出解釋。（圖／翻攝畫面）
3月3日大停電後，台電12日、13日又傳出4次停電！經濟部長王美花今（14）早出席立法院經濟委員會前受訪，向媒體表示，「台電故障率2021年相較2012年，近10年下降了12000件，303大停電事件，則是人為疏失，當然要改善。」
台電近期不時傳出停電消息，3/12台南傳出5區路燈不亮；3/13下午約4時，新北市林口1874戶突然停電；3/13約晚間9時，台北市萬華區也傳出1136戶突然停電消息；3/13，約晚間11時，南投也有民眾通報停電。其中前三次停電，台電說明皆是「零件或機組故障」。
今14日王美花出席立法院經濟委員會備詢前，媒體問及「近期台電故障率是否特別高？」對此，王美花回應，「我有在關注，其實近年故障率有改善，2012年全台故障約21000件，去年降到9000件，當然還是要持續的精進。」
她也提到，每次故障的原因都不太一樣，「青年公園（萬華）停電，是因為開關太潮濕造成短路，同仁第一時間就修復；南投停電則是電線桿因天候影響，有火花，有民眾通報，台電看了要趕快修，不修可能會引起更大的停電。台電去修理這段時間才有停電的事故」。
媒體追問，「停電現在已變成家常便飯？」王美花表示，「沒有，各地小設施本來就要維護，台電有在進步！」王美花進一步說明，台電其實都有統計停電次數，有些是幾秒鐘的事情，每次的事故不同。
針對3/3大停電造成的549萬戶停電事件，立委曾銘宗日前質詢時提到，「是否可以維持不停電？」王美花今日也特別說明，「那是人為疏失，當然要改善。」
王美花在會議上也針對台電停電說明，「台電散佈在全國各地開關等相關設施，共有上百萬個小零件，天候跟相關設備維護難免都會有，我們跟很多國家比起來，台灣的故障比例，其實在國際上表現是好的，當然我們會做得更好。」
