RF-Lambda REMC18G26GC User manual

REMC18G26GC
RF-LAMBDA USA LLC: www.rflambda.com
Sales: [email protected] Technical: [email protected]
Rev 2. 07-18-2023 | Subject to change without notice
Wideband EMC Benchtop Power Amplifier
18GHz-26.5GHz
Electrical Specifications (TA=+25⁰C)
Parameter Min Typ Max Units
Frequency Range 18 26.5 GHz
Small Signal Gain 47 53 dB
Gain Flatness ±6.0 dB
Gain Variation Over Temperature (0⁰C to +50⁰C)±3.0 dB
Input VSWR 2:1
Output 1dB Compression Point (P1dB) 46.5 dBm
Saturated Output Power (Psat) 47 48 dBm
Supply Current (220V AC) 5 A
IM3 -28 dBc
Power Added Efficiency (PAE) 10 %
Turn On/Off Speed (Switch Disable) ON 100 ns
OFF 100 ns
Turn On/Off Speed (Drain Disable) ON 20 us
OFF 100 us
Turn On/Off Speed (Gate Disable) ON 2000 us
OFF 50 us
Weight 47.4 Max. lbs.
Impedance 50 Ohms
Input / Output Connectors 2.92-Male(Input)/WR42 (Output)
(Input connector equipped with adapter to 2.92-Female)
(H-Plane available with adapter)
Package 3U Rack-mount/Tabletop Chassis
Product Description
REMC18G26GC is a wideband EMC power amplifier with a frequency range
of 18 to 26.5GHz.
The power output of this amplifier is 48dBm typical. The typical small signal
gain is 53dB with a flatness of ±6dB. This excellent performance is
achieved through the use of GaN devices.
The power amplifier’s input connector is 2.92mm-Male and Output
connector is WR42. This product has a calibration feature which enables
customer to obtain great performance through time and temperature
changes.
The operating temperature of this product is with in 0⁰C to +50⁰C.
Features
•Wideband EMC Solid State Power Amplifier
•Small Signal Gain 53dB Typical
•Output Saturation Power 48dBm Typical
•Supply Voltage 110/220 VAC
•50 Ohm Matched Input/Output
•Overvoltage Protection
•Overcurrent Protection
Typical Applications
•Wireless Infrastructure
•Military and Aerospace Applications
•Test Instrumentation
•Radar Systems
•5G Wireless Communications
•Microwave Radio Systems
•TR Modules
•Research and Development
•Cellular Base Stations

REMC18G26GC
RF-LAMBDA USA LLC: www.rflambda.com
Sales: [email protected] Technical: [email protected]
Rev 2. 07-18-2023 | Subject to change without notice
Parameter Rating
Supply Voltage Range 90VAC to 264VAC
*RF Input Power (RFIN) Psat –Large Signal Gain
*Maximum RF input power is set to assure safety of amplifier. Input power may be increased at own risk to achieve full power of amplifier. Please
reference gain and power curves.
**For vibration testing details please see additional information section.
Absolute Maximum Ratings
Environmental Specifications and Test Standards
Parameter Description
Operational Temperature 0⁰C to +50⁰C
(Case Temperature)
Storage Temperature -40⁰C to +85⁰C
Thermal Shock 0⁰C →+50⁰C
(5 Cycles / 10 hours)
**Random Vibration MIL-STD-202G
Table 214-I, Test Condition Letter C
1.5 Hours Per Axis
High Temperature Burn In Temperature +50⁰C for 72 Hours
Shock 1. Weight >20g, 50g half sine wave for 11ms, Speed variation 3.44m/s 2. Weight <=20g, 100g Half sine wave for 6ms, Speed variation 3.75m/s
3. Total 18 times (6 directions, 3 repetitions per direction).
Altitude Standard: 30,000 Ft (Epoxy Sealed Controlled Environment)
Optional: Hermetically Sealed (60,000 ft. 1.0 PSI min)
Hermetically Sealed
(Optional) MIL-STD-883 (For Hermetically Sealed Units)
1. Connect input and output with 50 Ohm source/load.
(In band VSWR < 1.9:1 or >10dB return loss.)
2. Connect Power Cable
3. Turn On Back Panel AC Power Supply Switch
4. Press Front Panel Power Switch to Power Display
Bias Up Procedure Bias Down Procedure
1. Press Front Panel Power Switch to Power Off Display
2. Turn Off Back Panel AC Power Supply Switch
3. Remove Power Cable (If Moving Equipment)
4. Disconnect input and output with 50 Ohm source/load. (In
band VSWR < 1.9:1 or >10dB return loss.)

REMC18G26GC
RF-LAMBDA USA LLC: www.rflambda.com
Sales: [email protected] Technical: [email protected]
Rev 2. 07-18-2023 | Subject to change without notice
Typical Performance Plots
Gain @ +25℃Input VSWR@+25℃
Isolation @ +25℃
Note: Small signal VNA measurements include attenuators to protect equipment

REMC18G26GC
RF-LAMBDA USA LLC: www.rflambda.com
Sales: [email protected] Technical: [email protected]
Rev 2. 07-18-2023 | Subject to change without notice
Typical Performance Plots
Gain vs. Output Power CW
Saturation Power vs. Frequency CW Pout vs. Pin
PndB vs. Frequency CW
2nd Harmonic Wave Output Power

REMC18G26GC
RF-LAMBDA USA LLC: www.rflambda.com
Sales: [email protected] Technical: [email protected]
Rev 2. 07-18-2023 | Subject to change without notice
Typical Performance Plots
Right IM3 vs. Pout
Delta IM3 vs. Pout
Left IM3 vs. Pout
Note: IM3 test performed with 1MHz tone spacing

REMC18G26GC
RF-LAMBDA USA LLC: www.rflambda.com
Sales: [email protected] Technical: [email protected]
Rev 2. 07-18-2023 | Subject to change without notice
Typical Performance Plots
The Gate-Enable Rise Time is 50 us @+25℃The Gate-Enable Fall Time is 2000 us @+25℃
The drain control port：D-sub 15 PIN #3(Drain Disable).
The yellow curve is the drain control signal, the blue curve is RF output envelope.
The Drain-Enable Rise Time is 100 us @+25℃The Drain-Disable Fall Time is 20 us @+25℃
The gate control port：D-sub 15 PIN #2 (Gate Disable).
The yellow curve is the gate control signal, the blue curve is RF output envelope.
Switch control port: D-sub 15 PIN #10(Switch Disable) .
The yellow curve is the switch control signal, the blue curve is RF output envelope.
The Switching Rise Time is 100 ns @+25℃The Switching Fall Time is 100 ns @+25℃

REMC18G26GC
RF-LAMBDA USA LLC: www.rflambda.com
Sales: [email protected] Technical: [email protected]
Rev 2. 07-18-2023 | Subject to change without notice
EMC Equipment Specifications
Front Panel LCD
Keypad
GND connector
RF Input(2.92mm-Male)
Rear Panel
Main AC connector
GND connector
Gain Adjustment Knob
-40dB Coupling
ON/OFF switch
RF Output(WR42)
AC power supply switch
USER CONTROL
DB-15 Connector
TTL control signals
See page below for more information
USB-A Port (work log)
USB-A Port (N/A)
USB-B Port(remote control)
LAN Port(remote control)

REMC18G26GC
RF-LAMBDA USA LLC: www.rflambda.com
Sales: [email protected] Technical: [email protected]
Rev 2. 07-18-2023 | Subject to change without notice
Self Calibration Screen
Instrument Protection Alarms
The front panel LCD screen will display the error code or error message when instrument self protection is
triggered. Front panel alarm indicator will light up.
To eliminate the error code, press “RESET” on front panel keypad to reboot the instrument and clear the alarms.
If error code can not be eliminated after reboot, please contact [email protected]
The Calibration key is invalid.
Switching On The Instrument
Please follow the instructions on the front panel LCD screen after switching on the power.
Press “1” on keypad to continue.
Front Panel LCD Screen Display

REMC18G26GC
RF-LAMBDA USA LLC: www.rflambda.com
Sales: [email protected] Technical: [email protected]
Rev 2. 07-18-2023 | Subject to change without notice
Instrument temperature
RF output attenuation (change with adjustment knob)
RF input signal frequency
Instrument RF output power
Switches On or Off for instrument RF output port
Indicates instrument RF output status. It will display:
ON or OFF
Press “Menu” on keypad to enter instrument functions
selection menu
To enter this function selection page, press “Menu” on front
panel keypad while the instrument is showing the status page.
Press the corresponding number on front panel keypad to
select:
“[1] Calibrate”the calibrate key is invalid
“[2] Frequency” enters RF input signal frequency
“[3] RF ON/OFF” switches the RF output port on or off
“[4] Reset” Restarts the instrument (Turns RF output off)
“[5] IP Set” enters IP display page
“[6] Product Info” displays product information
All action functions will ask for confirming execution when selected from function selection menu.
Instrument Status Display Page
Instrument Function Selection Page
Front Panel LCD Screen Function
ALC mode, power lock
AGC mode, this function is invalid

REMC18G26GC
RF-LAMBDA USA LLC: www.rflambda.com
Sales: [email protected] Technical: [email protected]
Rev 2. 07-18-2023 | Subject to change without notice
Pin # Name Function Initial State Description Applied
1 Reset Control HIGH
Resets PA when logic LOW is applied for five more seconds
and released Yes
2 Gate Disable Control LOW Appling logic HIGH disables gate of amplifiers Yes
3 Drian Disable Control LOW Applying logic HIGH disables drain of amplifiers Yes
4 RF IN Over Indicator LOW
Pin will be latched to logic HIGH when input signal is over limit
Yes
5 Temp Over Indicator LOW
Pin will be latched to logic HIGH when amplifier is driven over
temperature Yes
6 Current Over Indicator LOW Pin will be latched to logic HIGH when drain current limit is
reached Yes
7 ID Imbalance Indicator LOW Pin will be latched to logic HIGH when an imbalance in the
drain current of the combining branches occurs Yes
8 PA Off Alarm Indicator LOW
Pin will be latched to logic HIGH when any of the protection
limit is reached Yes
9 Fan Alarm Indicator LOW Pin will be latched to logic HIGH when Fan limit is reached Yes
10 RF Input Switch Control LOW Applying logic HIGH turns OFF RF front-end switch to
terminator Yes
11 VSWR Indicator LOW
Pin will be latched to logic HIGH when output reflection is over
limit Yes
12
Fixed Attenuation
10dB Control LOW Applying and holding logic HIGH to enable 10dB fixed attenuation Yes
13
Fixed Attenuation
20dB Control LOW Applying and holding logic HIGH to enable 20dB fixed attenuation Yes
14 +5V Power Supply +5V +5V DC is provided for reference * Yes
15 GND GND GND GND Yes
Female D-Sub is on the housing
The mating male part number: 172-E15-103R001
Notes:
•HIGH/LOW voltages are standard TTL signals 0.0V-0.8V = LOW. 2.8V-5V = HIGH.
Protection Connector Table