A closed-form solution for the continuous inverse class E (class E⁻¹) design space is presented for the first time¹. Analogous to the class-E power amplifier (PA) modes, the zero current and its derivative conditions needed for the class E⁻¹ switching action can also be shown to be satisfied with any second harmonic susceptance. The complementary relationship between the continuous PA modes for class E and class E⁻¹ are analytically proven. Signal integrity limitations on the continuous class E and class E⁻¹ PA modes are demonstrated to exist and to limit the useful range of solutions of the design space. ²Consequently, the maximum achievable bandwidth using the continuum of solutions in both class E/E⁻¹ is not 2 octaves as previously reported but only 1 octave.

中文翻译：

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连续逆 E 类功率放大器模式和连续模式自失真理论

首次提出了连续逆 E 类（E 类^-1）设计空间的封闭形式解¹。与 E 类功率放大器 (PA) 模式类似，E 类^-1开关动作所需的零电流及其微分条件也可以满足任何二次谐波电纳。E 类和 E 类^-1的连续 PA 模式之间的互补关系得到了分析证明。对连续 E 类和 E 类^-1 PA 模式的信号完整性限制被证明存在并且限制了设计空间的解决方案的有用范围。^2个因此，在 E/E ^-1类中使用连续解的最大可实现带宽不是之前报道的 2 个八度音程，而是只有 1 个八度音程。