或者参考一下n8lp的lp100a表,他用双磁环的方向耦合器,磁环是ft-140-61的,内部采用类似-3的特富龙线。
http://www.telepostinc.com/lp100.htmlcouplers:
standard coupler is lpc1, 3kw, 1.8 to 54 mhz. optional couplers include...
lpc2 0.10w to 5kw, 1.8 to 30 mhz
lpc4 0.10w to 5kw, 1.8 to 54 mhz
lpc5 0.20w to 10kw, 1.8 to 30 mhz
all couplers rated for 100% duty cycle continuous carrier (ccs) operation at all frequencies except as follows...
lpc1: 50% duty cycle on 160m for full power rating
lpc4: 90% duty cycle all bands but 160 (50%)
lpc5: 80% duty cycle all bands but 160 (50%)
和lp100一起随机或者套件包含的方向耦合器是lpc1,,lp100的装配手册上如何扰这两个磁环都说得很仔细,很可爱的方式做线圈均匀分布的。
另外整机上的参考,可以随便看看 emtron dx4 的pdf,最后部分说到swr耦合器的调试
http://www.angelsnz.net/zl3sv/misc/dx4-amp-7.pdf