PHILTEQ

Cryogenic Amplifier 

PHILTEQ is proud of supplying low noise cyrogenic amplifiers for the special applications. Typically, the customer provides the cryogenic cooling, but we have supplied some amplifiers with built-in cryogenic cooling systems (the size is customized).

For cryogenically cooled LNA,improvements in noise figure depend upon the type of FET used. pHEMT FETs have improved noise figures down to 77K, and mHEMT and InP devices improve down to 4K. Our current product in production covers the frequency from 180MHz to 1150MHz.Other frequency products are now under development. Please contact us for more information.

Cryogenic Low Noise Amplifier(180MHz to 1150MHz)

Absolute Maximum ratings on working status
Parameter	Typical	Min	Max
Vds	5 V	-	6 V
Ids	20 mA	8 mA	60 mA
Vgs	0.5 V	-	1 V

Product features

• Frequency range: 180 MHz~1150 MHz (customization)
• Working Temp: 60 K- 300 K (customization)
• Enclose size: 55 mm´26 mm´16 mm
• RF-Connectors: two female SMA
• DC-Connector: 5 V DC pin. 

Outline drawing

Typical RF&DC characteristics

l  Normal LNA

ROOM TEMPERATURE (T=300 K) PERFORMANCE
Model	Frequency (MHz)	NF (dB, Typ.)	Gain (dB, Typ.)	S11   (dB)	S22 (dB)	P-1out (dBm, Typ.)	Voltage (V)	Current (mA)
NA-F180240G15	180~240	0.4	15.5	< -20	< -20	-2	5	15
NA-F360460G12	360~460	0.4	12	< -20	< -20	2	5	10
NA-F360460G17	360~460	0.4	17	< -20	< -15	6	5	10
NA-F530630G11	530~630	0.4	11	< -20	< -20	1	5	10
NA-F7501050G14	750~1050	0.4	14	< -20	< -20	6	5	10
NA-F9501150G14	950~1150	0.4	13.5	< -20	< -15	5	5	10

 l  Cryogenic LNA

CRYOGENIC TEMPERATURE (T=75 K) PERFORMANCE
Model	Frequency (MHz)	NF (dB, Typ.)	Gain (dB, Typ.)	S11   (dB)	S22 (dB)	P-1out (dBm, Typ.)	Voltage (V)	Current (mA)
CA-F180240G18	180~240	0.25	18	< -20	< -20	4	5	30
CA-F360460G15	360~460	0.2	14.5	< -20	< -20	8.5	5	20
CA-F360460G20	360~460	0.25	19.5	< -20	< -15	13.5	5	20
CA-F530630G14	530~630	0.25	13.5	< -20	< -20	8.5	5	20
CA-F7501050G17	750~1050	0.25	16.5	< -20	< -20	12.5	5	20
CA-F9501150G16	950~1150	0.25	16	< -20	< -15	14	5	20