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Horn antenna 財經 觀望輝達財報、AI股獲利了結 科股拖累美股多收黑 202
2026/05/20 14:56
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Standard Gain Horn Antenna

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Standard gain horn antennas are used as calibration devices that measure the gain of other antennas.

These antennas are made up of a combination of a Waveguide to Coax Adapter and Standard Gain Horn with Waveguide Input. It is a kind of simple combination but with great care and attention to create an antenna with accurate and suitable specs.

FT-RF Standard gain horn antenna product series includes waveguide sizes WR28, WR42, WR51, WR62, WR75, WR90, WR112, WR137, WR159, WR187, WR229, WR284 and WR340, WR430, WR510, WR650, WR770, WR975, WR1150, WR1500, WR1800, WR2100, WR2300, with broadband waveguide horn antennas have frequency capabilities ranging from 320Mhz to 40 GHz depending on type and style. with the gain of 10dBi, 15dBi, 20dBi and 25dBi.

Standard Gain Horn Antenna Applications:

  • - Antenna measurement
  • - Radar Detection System
  • - Wireless Communication
  • - Spectrum Monitoring
  • - Electromagnetic interference Testing (EMI test)

輝達財報即將公布，市場觀望氣氛升溫，AI類股面臨獲利了結壓力，市場賣壓主要來自債市波動；美國10年期公債殖利率再度升破4.6%，30年期公債殖利率盤中一度觸及5.2%，來到19年新高，顯示市場對通膨與利率前景憂慮升溫，美股週二（19）再度疲軟多現跌勢，標普500指數連續第三個交易日收黑。

美股四大指數收盤表現，道瓊工業指數下跌322點，收在4萬9363點；那斯達克指數下跌220點，回到2萬5870點；S&P500指數下跌49點，收在7353點；費城半導體小漲2點，收在1萬1305點。

晶片類焦點個股多見跌勢，英特爾上漲2.43%；美光上漲2.52%；輝達下跌0.77%；AMD下跌1.65%；博通下跌2.29%；高通下跌3.94%。

科技五大巨頭漲跌互見，蘋果上漲0.38%，股價298.97美元；Alphabet下跌2.09%，股價384.90美元；亞馬遜下跌2.08%，股價259.34美元；微軟下跌1.44%，股價417.42美元；Meta下跌1.41%，股價602.61美元。

台股ADR方面，台積電ADR下跌0.84%，股價收392.61美元；聯電ADR上漲2.69%；日月光ADR下跌2.40%；中華電信ADR上漲3.49%。

責任編輯／張碧珊



以下內文出自: https://news.ttv.com.tw/news/115052000050001

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