alpha industries, inc. [781] 935-5150 fax [617] 824-4579 email sales@alphaind.com www.alphaind.com 1 specifications subject to change without notice. 3/99a four-way 0 power splitter combiner 1.71C1.99 ghz features n low cost n low profile n available in small soic-8 package n tape & reel PD4W18-12 description the PD4W18-12 is a monolithic four-way in-phase hybrid junction tuned for the 1.71C1.99 ghz band. it offers low loss, high isolation, good input/output matching and exceptional phase/amplitude balance. it is available in the soic-8 leaded surface mount package. electrical specifications at 25c parameter min. typ. max. unit frequency 1.71 1.99 ghz insertion loss less 6 db split 0.7 1.0 db isolation 18 25 db input vswr 1.6:1 1.8:1 output vswr 1.2:1 1.5:1 amplitude balance .3 .4 db phase balance 5.0 9.0 deg. block diagram in/sum port 2 port 3 port 1 port 4 123 4 876 5 in/sum gnd gnd port 2 port 1 port 4 port 3 gnd 4w18 pin out
four -w a y 0 p o wer splitter combiner 1.71C1.99 ghz PD4W18-12 2 alpha industr ies , inc. [781] 935-5150 f ax [617] 824-4579 email sales@alphaind.com www .alphaind.com specifications subject to change without notice. 3/99a f r e q u e n c y ( g h z ) i n s e r t i o n l o s s ( d b ) i n s e r t i o n l o s s v s . f r e q u e n c y - 6 . 4 0 - 6 . 6 0 - 7 . 0 0 - 7 . 2 0 - 7 . 4 0 1 . 7 1 1 . 7 5 1 . 7 9 1 . 8 3 1 . 8 7 1 . 9 1 1 . 9 5 1 . 9 9 p o r t 4 p o r t 2 p o r t 1 p o r t 3 f r e q u e n c y ( g h z ) i s o l a t i o n ( d b ) i s o l a t i o n v s . f r e q u e n c y 0 - 5 - 1 0 - 1 5 - 2 0 - 2 5 - 3 0 - 3 5 - 4 0 1 . 7 1 1 . 7 5 1 . 7 9 1 . 8 3 1 . 8 7 1 . 9 1 1 . 9 5 1 . 9 9 p o r t 1 C 4 p o r t 1 C 2 p o r t 2 C 3 p o r t 2 C 4 p o r t 3 C 4 p o r t 1 C 3 p o r t 2 C 3 p o r t 1 C 3 p o r t 1 C 2 p o r t 2 C 4 p o r t 1 C 4 p o r t 3 C 4 f r e q u e n c y ( g h z ) a m p l i t u d e b a l a n c e ( d b ) a m p l i t u d e b a l a n c e v s . f r e q u e n c y 1 . 0 0 0 . 5 0 0 . 0 0 - 0 . 5 0 - 1 . 0 0 1 . 7 1 1 . 7 5 1 . 7 9 1 . 8 3 1 . 8 7 1 . 9 1 1 . 9 5 1 . 9 9 f r e q u e n c y ( g h z ) i n p u t v s w r ( : 1 ) i n p u t v s w r v s . f r e q u e n c y 1 . 6 1 . 5 1 . 4 1 . 3 1 . 2 1 . 1 1 . 0 1 . 7 1 1 . 7 5 1 . 7 9 1 . 8 3 1 . 8 7 1 . 9 1 1 . 9 5 1 . 9 9 f r e q u e n c y ( g h z ) p h a s e b a l a n c e ( d e g . ) p h a s e b a l a n c e v s . f r e q u e n c y 1 0 8 6 4 2 0 - 2 - 6 - 1 0 - 4 - 8 1 . 7 1 1 . 7 5 1 . 7 9 1 . 8 3 1 . 8 7 1 . 9 1 1 . 9 5 1 . 9 9 p o r t 2 C 3 p o r t 1 C 3 p o r t 2 C 4 p o r t 1 C 4 p o r t 1 C 2 p o r t 3 C 4 p o r t 1 p o r t 2 p o r t 3 p o r t 4 f r e q u e n c y ( g h z ) o u t p u t v s w r ( : 1 ) o u t p u t v s w r v s . f r e q u e n c y 1 . 5 1 . 4 1 . 3 1 . 2 1 . 1 1 . 0 1 . 7 1 1 . 7 5 1 . 7 9 1 . 8 3 1 . 8 7 1 . 9 1 1 . 9 5 1 . 9 9 typical performance data
four -w a y 0 p o wer splitter combiner 1.71C1.99 ghz PD4W18-12 alpha industr ies , inc. [781] 935-5150 f ax [617] 824-4579 email sales@alphaind.com www .alphaind.com 3 specifications subject to change without notice. 3/99a m a t e r i a l i s 1 0 m i l f r 4 0 . 0 3 9 t y p . 0 . 1 7 0 0 . 0 1 8 t y p . 0 . 0 2 1 t y p . 0 . 0 2 8 t y p . 0 . 0 2 0 d i a . v i a 2 p l a c e s 4 w 1 8 0 . 0 4 9 ( 1 . 2 4 m m ) 0 . 0 1 6 ( 0 . 4 1 m m ) 0 . 0 1 6 m a x . ( 0 . 4 1 m m ) x 4 5 ? c h a m f e r p i n 1 0 . 1 9 7 ( 5 . 0 0 m m ) 0 . 1 8 9 ( 4 . 8 0 m m ) 0 . 0 6 8 ( 1 . 7 3 m m ) m a x . 0 . 0 1 0 ( 0 . 2 5 m m ) 0 . 0 0 4 ( 0 . 1 0 m m ) 0 . 0 1 0 ( 0 . 2 5 m m ) 0 . 0 0 7 ( 0 . 1 7 m m ) 0 . 1 5 8 ( 4 . 0 0 m m ) 0 . 1 5 0 ( 3 . 8 0 m m ) 8 ? m a x . 0 . 0 2 0 ( 0 . 5 1 m m ) m a x . 0 . 2 4 4 ( 6 . 2 0 m m ) 0 . 2 2 8 ( 5 . 8 0 m m ) 0 . 0 5 0 ( 1 . 2 7 m m ) b s c p i n 8 p i n 1 i n d i c a t o r board layout soic-8 characteristic v alue input p o w er 1 +1.5 w cw input p o w er 2 +0.375 cw oper ating t emper ature -40c to +85c stor age t emper ature -60c to +150c absolute maximum ratings 1. when used as a po w er divider with a 2.0:1 max. vswr on all por ts . 2. when used as a po w er combiner with 2.0:1 max. vswr on all por ts .
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