ADI ADPA1105 40W 0．9－1．6GHzGaN功率放大器解决方案

ADI公司的ADPA1105是46dBm( 40W) 0.9-1.6 GHz 氮化镓(GaN)宽带功率放大器,提供输出功率46dBm( 40W),带宽0.9 GHz 到1.4 GHz的典型功率附加效率(PAE)为60%,增益平坦度为±0.5 dB,非常适合用于脉冲式应用如无线基础设备,雷达,公众移动无线电和通用放大器.其主要性能为当PIN=19dBm时输出功率46dBm, 0.9 GHz 至1.4 GHz的典型小信号增益为34.5 dB, 32引脚5 mm × 5 mm, LFSCP_CAV封装,电源电压VDD = 50 V.主要用在气象雷达,船用雷达和军用雷达.本文介绍了ADPA1105主要特性,功能框图,基本连接电路图以及评估板ADPA1105-EVALZ主要特性,电路图,材料清单和PCB装配图.

The ADPA1105 is a gallium nitride (GaN), broadband power amplifier that delivers 46 dBm (40 W) with 60% typical power added efficiency (PAE) across a bandwidth of 0.9 GHz to 1.4 GHz. The ADPA1105 provides ±0.5 dB gain flatness across a bandwidth of 0.9 GHz to 1.4 GHz. The ADPA1105 is ideal for pulsed applications such as wireless infrastructure, radar, public mobile radio, and general-purpose amplifications. The ADPA1105 comes in a 32-lead, lead frame chip scale package, premolded cavity (LFCSP_CAV).

ADPA1105主要特性:

Output power with PIN = 19 dBm: 46 dBm typical

Small signal gain: 34.5 dB typical at 0.9 GHz to 1.4 GHz Power gain with PIN = 19 dBm: 27 dB typical

Bandwidth: 0.9 GHz to 1.6 GHz

PAE with PIN = 19 dBm: 60% typical at 0.9 GHz to 1.4 GHz

Supply voltage: VDD = 50 V at 400 mA on 10% duty cycle

32-Lead, 5 mm × 5 mm, LFSCP_CAV package

ADPA1105应用:

Weather radar

Marine radar

Military radar

图1.ADPA1105功能框图

图2.ADPA1105基本连接电路图

评估板ADPA1105-EVALZ

 Evaluating the ADPA1105 46 dBm (40 W), 0.9 GHz to 1.6 GHz, GaN Power Amplifier

 The ADPA1105-EVALZ consists of a 2-layer printed circuit board (PCB) fabricated from a 10 mil thick, Rogers 4350B copper clad mounted to an aluminum heat spreader. The heat spreader assists in providing thermal relief to the device as...