Deployable antennas for in-body devices, such as implantable and ingestible devices, are provided. The article comprises a substrate formed of a metal alloy containing ruthenium and one or more refractory elements. The GR signal tracks a device ground signal of a device and the PR signals track a device power signal of the device. An outer end of the arm forming a visible bucket position indicator. The present filtering system can provide preliminary filtering before water is delivered for further conditioning by secondary filters, heater, or the like. Consequently, yield loss effects caused by leakage paths or short circuits in the first metallization layer may be significantly reduced.