论文标题
直接天线调制发射器中的辐射效率极限
Radiation Efficiency Limits in Direct Antenna Modulation Transmitters
论文作者
论文摘要
为时间调节的天线系统建立了辐射效率的相对边界，其中宽带传导电流使用理想化的非辐射时间变化子系统（例如在直接天线调制（DAM）发射器中发现的宽带传导电流产生的辐射。分析和数值示例表明，在几乎所有实用的直接天线调制发射器中常见的准谐和条件对本类时期调节的发射器在理论上可实现的有效效率上的有效效率上施加了严格的限制。
Relative bounds on radiation efficiency are established for time-modulated antenna systems where radiation is generated by broadband conduction currents impressed using idealized non-radiating time-varying subsystems, such as those found in direct antenna modulation (DAM) transmitters. Analytical and numerical examples demonstrate that the condition of quasi-resonance, common in nearly all practical direct antenna modulation transmitters, imposes severe restrictions on the otherwise unbounded gains in effective efficiency theoretically achievable by this class of time-modulated transmitters.
