Patent ID: 9735752
Date: 2017-08-15
CPC Classifications: H03H

Claim:
1. A tunable filter comprising: a laminated substrate comprising a first vector inductor, wherein the first vector inductor includes no more than a single stack of non-spiral conductors including three or more conductors arranged on different layers of the laminated substrate, wherein each of the different conductive layers is separated by a dielectric, wherein the each of the three or more conductors are electrically connected to one another along a first side of the stack, and wherein each of the three or more conductors are electrically connected to one another along a second side of the stack opposite the first side, wherein the three or more conductors are electrically connected to one another along the first and second sides of the stack such that the three or more conductors are electrically connected in parallel with one another; and a semiconductor die attached to the laminated substrate, wherein the semiconductor die includes a first variable capacitor, wherein the first variable capacitor and the first vector inductor are electrically connected to operate as a first tunable resonator.