體育中心／賴禹蓉報導

「壞小子」又出奇招！印地安泉大師賽男單8強17日開打，首戰由西班牙「蠻牛」納達爾（Rafael Nadal）對決澳洲「壞小子」基爾喬斯（Nick Kyrgios），沒想到基爾喬斯在發球時，突然使出胯下擊球，不料卻直接被逮，讓納達爾打出正手拍的直線穿越球得分。

基爾喬斯過去的荒唐行徑時有所聞，時常不按牌理出牌的他，就曾被納達爾質疑不好好打球，沒想到在17日雙方交手的比賽中，「壞小子」又出怪招，發球時不只是使用低手發球，還是在胯下擊球，不過這次直接被納達爾識破，用強勁的正手拍回擊，直接回敬了一記致勝球得分。

本場比賽「壞小子」脾氣暴躁，情緒幾度失控，不但對主審叫囂，質疑主審沒有控制局面，甚至還怒嗆現場球迷，「你為什麼說話？」，最後在與納達爾握手致意後，基爾喬斯直接摔爛球拍，飛濺出來的碎片差點砸中一名球僮，引發熱議，不過他本人事後也馬上在IG上為自己的失控行為道歉，並請球迷們協助找到這位球僮，他想要送一支球拍給他。

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

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