high power, 2 channel pcs transmit combiner 1930 - 1990 mhz PD60-0008-02S v1.00 m/a-com, inc. north america: tel. (800) 366-2266 n asia/paci?: tel. +81 3 3263 8761 n europe: tel. +44 (1344) 869 595 fax (800) 618-8883 fax +81 3 3263 8769 fax +44 (1344) 300 020 1 the preliminary speci?ations data sheet contains typical electrical speci?ations which may change prior to final introduction. l l l l l l features low loss high power handling integral heat sink high isolation low vswr low cost description m/a-com? PD60-0008-02S is designed to provide a low loss method of combining signals from two trans- mitters at pcs frequencies. high power internal compo- nents and an integral heat sink enables the device to combine non-coherant 20 watt signals. the housing and heat sink are fabricated as one piece for optimum heat transfer and low cost. the insertion loss, when combining non-coherant signals is a low -3.17db nomi- nal, only 0.15db above theoretical loss for a 2-way device. microstrip construction offers a design that is cost effective and highly repeatable. *above 3db theoretical combining loss sma jack (3 pls) finned heat sink 1.63 (41.3) 1.00 (25.4) 1.13 (28.6) 2.95 (74.9) 3.25 (82.6) .13 (3.2) .50 (12 .7 ) 1.90 (48.3) 2.06 (52.3) 1.53 (38.7) .19 (4.8) preliminary speci?ations parameter limit typical impedance 50 ohms nom vswr 1.25:1 max 1.10:1 insertion loss* 0.3db max 0.15db amplitude balance 0.20db max 0.05db isolation 20db min 27db max input power 20 watts/input operating temp -40 to +60? performance speci?ations: 1930-1990 mhz the required method of cooling is forced air at 10 cfm at +60? max ambient for two 20 watt simultaneous inputs. if the input power level or ambient temperature is lowered, the forced air requirement can be reduced. this device can be provided with type n connectors or increased power handling capability. m/a-com also offers a wide selection of cost effective devices for combining and dividing any number of channels in popular cellular transmit and receive bands. please con- sult our factory. (dimensions in parenthesis are in mm)
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