Patents by Inventor Lukas SANDSTRÖM

Lukas SANDSTRÖM has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Hybrid coil circuit
    Patent number: 9948004
    Abstract: It is presented a hybrid coil circuit comprising: a transformer; a common mode choke, wherein all choke windings are magnetically coupled; an impedance matching device connected on a middle choke winding, the impedance matching device being connected to ground; a first port being provided between a first choke winding and the impedance matching device; a second port being provided between a third choke winding and the impedance matching device; a third port being provided between either end of a second transformer winding; a first inductor arranged between the impedance matching device and the first port; and a second inductor arranged between the impedance matching device and the second port, wherein the first inductor and the second inductor are magnetically coupled.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: April 17, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Elmar Trojer, Per-Erik Eriksson, Chenguang Lu, Lukas Sandström, Miguel Berg
  • HYBRID COIL CIRCUIT
    Publication number: 20170125902
    Abstract: It is presented a hybrid coil circuit comprising: a transformer; a common mode choke, wherein all choke windings are magnetically coupled; an impedance matching device connected on a middle choke winding, the impedance matching device being connected to ground; a first port being provided between a first choke winding and the impedance matching device; a second port being provided between a third choke winding and the impedance matching device; a third port being provided between either end of a second transformer winding; a first inductor arranged between the impedance matching device and the first port; and a second inductor arranged between the impedance matching device and the second port, wherein the first inductor and the second inductor are magnetically coupled.
    Type: Application
    Filed: July 1, 2014
    Publication date: May 4, 2017
    Inventors: Elmar TROJER, Per-Erik ERIKSSON, Chenguang LU, Lukas SANDSTRÖM, Miguel BERG