High-frequency transformer, high-frequency component, and communication terminal device

A high-frequency component comprising:

• a high-frequency transformer including:
• a laminated body including a plurality of base material layers that are laminated on one another;
• and
• a primary coil and a secondary coil including at least portions thereof that are embedded in the laminated body;
• wherein
• the primary coil includes an odd-numbered coil conductor pattern whose coil aperture includes a first axis, and an even-numbered coil conductor pattern which is series-connected to the odd-numbered coil conductor pattern of the primary coil and whose coil aperture includes a second axis that is parallel or approximately parallel to the first axis of the primary coil;
• the secondary coil includes an odd-numbered coil conductor pattern whose coil aperture includes the second axis and which is disposed adjacent to the odd-numbered coil conductor pattern of the primary coil, and an even-numbered coil conductor pattern which is series-connected to the odd-numbered coil conductor pattern of the secondary coil, whose coil aperture includes the first axis, and which is disposed adjacent to the even-numbered coil conductor pattern of the primary coil;
• and
• the odd-numbered coil conductor pattern of the primary coil, the even-numbered coil conductor pattern of the primary coil, the odd-numbered coil conductor pattern of the secondary coil, and the even-numbered coil conductor pattern of the secondary coil are wound such that when currents flow through the primary coil and the secondary coil, directions of a magnetic field occurring in the first axis and a magnetic field occurring in the second axis are opposite to each other.

A communication terminal device comprising:

• a high-frequency transformer in a transmission unit of a communication signal, wherein
• the high-frequency transformer includes
• a laminated body including a plurality of base material layers that are laminated on one another;
• and
• a primary coil and a secondary coil including at least portions thereof that are embedded in the laminated body;
• wherein
• the primary coil includes an odd-numbered coil conductor pattern whose coil aperture includes a first axis, and an even-numbered coil conductor pattern which is series-connected to the odd-numbered coil conductor pattern of the primary coil and whose coil aperture includes a second axis that is parallel or approximately parallel to the first axis of the primary coil;
• the secondary coil includes an odd-numbered coil conductor pattern whose coil aperture includes the second axis and which is disposed adjacent to the odd-numbered coil conductor pattern of the primary coil, and an even-numbered coil conductor pattern which is series-connected to the odd-numbered coil conductor pattern of the secondary coil, whose coil aperture includes the first axis, and which is disposed adjacent to the even-numbered coil conductor pattern of the primary coil;
• and
• the odd-numbered coil conductor pattern of the primary coil, the even-numbered coil conductor pattern of the primary coil, the odd-numbered coil conductor pattern of the secondary coil, and the even-numbered coil conductor pattern of the secondary coil are wound such that when currents flow through the primary coil and the secondary coil, directions of a magnetic field occurring in the first axis and a magnetic field occurring in the second axis are opposite to each other.