In this work, a new structure for the implementation of inline pseudoelliptic waveguide filters using non-resonating modes, based on asymmetric iris coupled transverse rectangular ridge resonators has been proposed. The basic structure is comprised of a ridge that is always centered and transverse to the waveguide center axis and has the ability to create a transmission zero (TZ) above or below the passband without involving any rotation of the ridge, thus enabling quicker design of the resulting filters by allowing the use of more efficient analysis tools like FEST3D, in addition to the more general purpose methods like HFSS. A centered ridge enables the ease of manufacturing through machining. The proposed structure makes use of rectangular waveguide's dominant TE10 mode as a non-resonating mode to create an alternate energy path from source to load, thus realizing a TZ, while the asymmetric irises excite the ridge resonator, enabling the overall structure to act as a singlet capable of producing both a pole and a TZ. A third-order filter with one TZ and a fifth-order filter with two TZs have been designed and manufactured. Measured results show good consistency with the simulated data, validating the viability of the proposed structure.

在这项工作中，提出了一种基于非对称虹膜耦合横向矩形脊谐振器的使用非谐振模式实现内嵌伪椭圆波导滤波器的新结构。基本结构由始终居中并横向于波导中心轴的脊组成，并且能够在通带上方或下方创建零传输 (TZ)，而不涉及脊的任何旋转，从而能够更快地设计通过允许使用更有效的分析工具（如 FEST3D）以及更通用的方法（如 HFSS）来生成过滤器。中心脊使通过机加工制造变得容易。所提出的结构利用矩形波导' s 占主导地位的 TE10 模式作为非谐振模式，以创建从源到负载的替代能量路径，从而实现 TZ，而不对称的虹膜激发脊谐振器，使整体结构能够充当能够产生两个极点的单重态和一个 TZ。已经设计和制造了具有一个 TZ 的三阶滤波器和具有两个 TZ 的五阶滤波器。实测结果与模拟数据具有良好的一致性，验证了所提出结构的可行性。