Bias tees combine RF and DC paths using a broadband inductor and capacitor network to feed DC bias to active devices without disturbing RF signals.  They are rated for RF bandwidth, DC current/voltage, insertion loss, and isolation between ports. 

Model	Frequency(GHz)	Insertion Loss（dB）	DC-RF ISO.（dB） TYP	VSWR	Voltage（V）	Current(mA)	Spec
LMWBT-30K27G	30KHz-27	2.2	40	1.7	50	-
LMWBT-100K18G	100KHz-18	2	35	1.5	18	700
LMWBT-1M3G	1MHz~3	0.8	30	1.3	+12	300
LMWBT-3M10G	3MHz-10	-	55	1.5	50	600
LMWBT-10M6G	10MHz -6	0.5	-	-	50	-
LMWBT-10M18G	10MHz~18	1	30	1.5	+12	300
LMWBT-10M40G	10MHz~40	2	30	2	+12	300
LMWBT-05120	0.5-12	1.5	-	1.7	100	-
LMWBT-2G18G	2~18	1	30	1.6	+12	300
LMWBT-2535-10A	2.5~3.5	0.5	30	1.3	+25	10A
LMWBT-14G16G-5A	14~16	0.8	30	1.5	+28	5.5A