An apparatus comprising: a die comprising a transmission filter; and a substrate coupled to the die, the substrate comprising: at least one dielectric layer (1420, 1422, 1424); and an inductive coupler formed in the at least one dielectric layer (1420, 1422, 1424), the inductive coupler comprising: a first inductor formed in the at least one dielectric layer (1420, 1422, 1424), wherein the first inductor is electrically coupled between the transmission filter and an antenna; and a second inductor formed in the at least one dielectric layer (1420, 1422, 1424), wherein the second inductor is electrically coupled to the transmission filter and ground, wherein the second inductor is configured to provide a path from the transmission filter to ground for a rejected signal having a rejected frequency, the rejected signal being a signal rejected by the transmission filter, and wherein the second inductor is configured such that the rejected signal traveling through the second inductor causes the first inductor to generate an induced signal that counteracts a leakage signal traveling through the transmission filter, the leakage signal being a signal which the transmission filter is configured to reject but was able to pass through the first inductor. a die comprising a transmission filter; and a substrate coupled to the die, the substrate comprising: at least one dielectric layer (1420, 1422, 1424); and an inductive coupler formed in the at least one dielectric layer (1420, 1422, 1424), the inductive coupler comprising: a first inductor formed in the at least one dielectric layer (1420, 1422, 1424), wherein the first inductor is electrically coupled between the transmission filter and an antenna; and a second inductor formed in the at least one dielectric layer (1420, 1422, 1424), wherein the second inductor is electrically coupled to the transmission filter and ground, wherein the second inductor is configured to provide a path from the transmission filter to ground for a rejected signal having a rejected frequency, the rejected signal being a signal rejected by the transmission filter, and wherein the second inductor is configured such that the rejected signal traveling through the second inductor causes the first inductor to generate an induced signal that counteracts a leakage signal traveling through the transmission filter, the leakage signal being a signal which the transmission filter is configured to reject but was able to pass through the first inductor. at least one dielectric layer (1420, 1422, 1424); and an inductive coupler formed in the at least one dielectric layer (1420, 1422, 1424), the inductive coupler comprising: a first inductor formed in the at least one dielectric layer (1420, 1422, 1424), wherein the first inductor is electrically coupled between the transmission filter and an antenna; and a second inductor formed in the at least one dielectric layer (1420, 1422, 1424), wherein the second inductor is electrically coupled to the transmission filter and ground, wherein the second inductor is configured to provide a path from the transmission filter to ground for a rejected signal having a rejected frequency, the rejected signal being a signal rejected by the transmission filter, and wherein the second inductor is configured such that the rejected signal traveling through the second inductor causes the first inductor to generate an induced signal that counteracts a leakage signal traveling through the transmission filter, the leakage signal being a signal which the transmission filter is configured to reject but was able to pass through the first inductor. a first inductor formed in the at least one dielectric layer (1420, 1422, 1424), wherein the first inductor is electrically coupled between the transmission filter and an antenna; and a second inductor formed in the at least one dielectric layer (1420, 1422, 1424), wherein the second inductor is electrically coupled to the transmission filter and ground, wherein the second inductor is configured to provide a path from the transmission filter to ground for a rejected signal having a rejected frequency, the rejected signal being a signal rejected by the transmission filter, and wherein the second inductor is configured such that the rejected signal traveling through the second inductor causes the first inductor to generate an induced signal that counteracts a leakage signal traveling through the transmission filter, the leakage signal being a signal which the transmission filter is configured to reject but was able to pass through the first inductor.