CSS_02-3258A_Power_Amplifier.pdf

CALIBRATION STANDARD SPECIFICATION

PROCUREMENT PACKAGE

1 MHz - 1000 MHz, 0.1 Watt

CLASS A LINEAR AMPLIFIER

DEPARTMENT OF THE NAVY

METROLOGY AND CALIBRATION PROGRAM

CSS 02-3258A

DISTRIBUTION STATEMENT A APPROVED FOR PUBLIC RELEASE, DISTRIBUTION IS UNLIMITED.

AUGUST 2017

CALIBRATION STANDARDS SPECIFICATION

PROCUREMENT PACKAGE

1 MHz -1000 MHz, 0.1 Watt

CLASS A LINEAR AMPLIFIER

Prepared by:

Electronic/Eletro-Optics Measurements Branch (MS 32)

Measurement Science Department

Naval Surface Warfare Center, Corona Division

P.O. Box 5000

Corona, CA 92878-5000

DEPARTMENT OF THE NAVY

METROLOGY AND CALIBRATION PROGRAM

1 MHz-1000 MHz, 0.1 Watt CLASS A LINEAR AMPLIFIER CALIBRATION STANDARD SPECIFICATION CSS 02-3258A i

Table of Contents

1.0 SCOPE

1.1 GENERAL

2.0 REQUIREMENTS

2.1 ELECTRICAL POWER SOURCES

2.2 CONNECTIONS

2.3 EQUIPMENT IDENTIFICATION

2.4 ENVIRONMENTAL REQUIREMENTS

2.4.1 WARM-UP

2.4.2 TEMPERATURE AND HUMIDITY

3.0 PERFORMANCE REQUIREMENTS

1.0 SCOPE

1.1 General. This specification defines the minimum requirements for an amplifier. It is intended to be used by Navy personnel in shipboard and shore-based laboratories. The amplifier will be used to calibrate various test instruments such as noise figure meters, attenuators, power sensors, oscilloscopes, spectrum analyzers, signal generators, and test sets.

2.0 REQUIREMENTS

2.1 Electrical Power Sources. The amplifier shall operate within specifications from a nominal AC power source of 120 Vrms at 50 Hz and 60 Hz single-phase input power.

2.2 Connections. The amplifier RF input and output connectors shall be type-N female located on the front panel. The type-N female connectors shall meet the MIL-STD-348A interface standard of +.204 inches to +.207 inches pin depth requirements. The electrical power input shall be located on the rear panel.

2.3 Equipment identification. The amplifier, excluding small accessory items contained within a reusable pouch or container, shall be identified with the items specified in a through d.

a. Manufacture name

b. Equipment model number with installed options

c. Equipment nomenclature

d. Serial number

2.4 Environmental Requirements. The amplifier environmental performance requirements shall be as specified below. The amplifier shall conform to the specified performance when subjected to the environmental conditions of this

CSS.

2.4.1 Warm-up. The amplifier shall comply with the specified performance requirements after a 30-minute maximum warm-up period preceded by a 2-hour maximum non operating temperature stabilization period.

2.4.2 Temperature and Humidity. The amplifier temperature and humidity limits for both operating and not operating conditions are as specified below.

Temperature (C) Relative Humidity (%)

Operating 15 to 30 20 to 60

Non-Operating -30 to 70 Not Controlled

3.0 PERFORMANCE REQUIREMENTS

Performance requirement for the amplifier shall be in accordance with the sub-paragraphs below. These requirements comprise the full performance requirement for the amplifier. All performance specification shall be met following a 30 minute warm-up period.

Operation. The amplifier shall be a class A linear amplifier and designed to amplify continuous-wave (CW), amplitude-modulation (AM), frequency-modulation (FM), phase-modulation (PM), and pulse-modulation signals with high fidelity. It is mainly used for the noise figure measurement which required a linear amplifier. The output signal amplitude and phase of a class A amplifier are linearly related to the input signal amplitude and phase. It operates in the linear portion of the characteristics curve and has the lower signal distortion levels and higher linearity.

Frequency range. The amplifier operating frequency range shall be at least 1 MHz– 1000 MHz.

Small Signal Gain. The amplifier small signal gain shall be at least 25 dB.

Gain Flatness. The flatness of the amplifier small signal gain shall not exceed ±1.5 dB maximum.

Output power. The amplifier output power shall be as follows:

o 1-dB Compression Output Power. The amplifier 1-dB compression output power shall be at least 20 dBm (100 mW).

Input Impedance. The amplifier input impedance shall be 50 Ω with a VSWR of 1.7:1 maximum.

Output Impedance. The amplifier output impedance shall be 50 Ω with a VSWR of 1.7:1 maximum.

Harmonics Distortion. The amplifier harmonic distortion at 20 dBm output power shall be ≤ -30 dBc.

Noise Figure. The amplifier noise figure shall be 8.5 dB maximum.