features low loss high power handling integral heat sink high isolation low vswr low cost description m/a-com? PD60-0014-04S is designed to provide a low loss method of combining signals from four ampli?rs or transmitters in a number of cellular bands. the combiner incorporates high power internal components and an integral heat sink to enable the device to combine non- coherant 50 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 -6.24db nominal, only 0.22db above the theoretical combining loss for a 4-way device. microstrip construction offers a design that is cost effective and highly repeatable. high power, 4 channel transmit combiner for amps/gsm/is-95 800 - 960 mhz PD60-0014-04S preliminary speci?ations v1.00 m/a-com, inc. north america: tel. (800) 366-2266 n asia/paci?: tel. +81 3 3263 8671 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 parameters limit typical impedance 50 ohms nom vswr 1.25:1 max 1.10:1 insertion loss* 0.4db max 0.22db amplitude balance 0.25db max 0.10db isolation 20db min 26db max input power 50 watts/input operating temp -40 to +60? performance speci?ations: 800-960 mhz *above 6db theoretical combining loss j5 j4 j3 j2 j1 sma jack (5 pls) finned heat sink .19 (5.0) 5.200 (132.1) 5.50 (139.7) 2.25 (57.2) .15 (3.8) 2.75 (69.9) .50 (12.7) 4.50 (114.3) 1.37 (34.7) 1.50 (38.1) typ .180 (4.6) 2x' thru the required method of cooling is forced air at 45 cfm at +60? max ambient for four 50 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 different 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 consult our factory. (dimensions in parenthesis are in mm)
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