A symmetrical inductor, comprising: a first and second terminal electrode (604, 606) that are both in a first conductive layer of a plurality of conductive layers, the plurality of conductive layers including first, second, and third conductive layers; a center-tap electrode in the third conductive layer of the plurality of conductive layers; a plurality of half-loop pairs (612, 614, 616, 618, 704, 710) including first (612, 614), second (616, 618), and third (704, 710) half-loop pairs, the first and second half-loop pairs (612, 614, 616, 618) respectively being an outer and inner half-loop pair, both implemented in the first conductive layer; wherein the first terminal electrode is coupled to the center-tap electrode through a series combination of a first half-loop of the first half-loop pair, a first half-loop of the second half-loop pair, and a first half-loop of the third half-loop pair, in that order; wherein the first half-loop of the first half-loop pair is in the first conductive layer on a first side of two sides (706, 708) of the symmetrical inductor, the first half-loop of the second half-loop pair is in the first conductive layer on a second side of the two sides, and the first half-loop of the third half-loop pair is in the second conductive layer and in the third conductive layer on the first side; wherein the second terminal electrode is coupled to the center-tap electrode through a series combination of a second half-loop of the first half-loop pair, a second half-loop of the second half-loop pair, and a second half-loop of the third half-loop pair, in that order; wherein the second half-loop of the first half-loop pair is in the first conductive layer on the second side, the second half-loop of the second half-loop pair is in the first conductive layer on the first side, and the second half-loop of the third half-loop pair is in the second conductive layer and in the third conductive layer on the second side. a first and second terminal electrode (604, 606) that are both in a first conductive layer of a plurality of conductive layers, the plurality of conductive layers including first, second, and third conductive layers; a center-tap electrode in the third conductive layer of the plurality of conductive layers; a plurality of half-loop pairs (612, 614, 616, 618, 704, 710) including first (612, 614), second (616, 618), and third (704, 710) half-loop pairs, the first and second half-loop pairs (612, 614, 616, 618) respectively being an outer and inner half-loop pair, both implemented in the first conductive layer; wherein the first terminal electrode is coupled to the center-tap electrode through a series combination of a first half-loop of the first half-loop pair, a first half-loop of the second half-loop pair, and a first half-loop of the third half-loop pair, in that order; wherein the first half-loop of the first half-loop pair is in the first conductive layer on a first side of two sides (706, 708) of the symmetrical inductor, the first half-loop of the second half-loop pair is in the first conductive layer on a second side of the two sides, and the first half-loop of the third half-loop pair is in the second conductive layer and in the third conductive layer on the first side; wherein the second terminal electrode is coupled to the center-tap electrode through a series combination of a second half-loop of the first half-loop pair, a second half-loop of the second half-loop pair, and a second half-loop of the third half-loop pair, in that order; wherein the second half-loop of the first half-loop pair is in the first conductive layer on the second side, the second half-loop of the second half-loop pair is in the first conductive layer on the first side, and the second half-loop of the third half-loop pair is in the second conductive layer and in the third conductive layer on the second side.