Low-cost linear power amplifier

The invention discloses a low-cost linear power amplifier, which belongs to the technical field of integrated circuits and comprises an input matching network, a common-emitter common-base adaptive bias power supply network, a multi-channel common-emitter base rectification stack common-emitter rectification amplification network and an output matching network. On the basis of the multi-path common-emitter base rectification stacking common-emitter rectification amplification network and in combination with the common-emitter common-base adaptive bias power supply network, the amplifier can adapt to temperature fluctuation and power dynamic fluctuation, and it is guaranteed that the common-emitter stacking common-base amplification circuit has a good wide dynamic linearity index and a low power consumption index; and moreover, the antenna has the characteristics of high gain, high linearity, high output power and high integration level. 本发明公开了一种低成本线性功率放大器，属于集成电路技术领域，包括输入匹配网络、共射共基自适应偏置供电网络、多路共射基极整流堆叠共基射级整流放大网络