DUAL INDUCTOR CIRCUIT FOR MULTI-BAND WIRELESS COMMUNICATION DEVICE
First Claim
1. A multi-band wireless communication device comprising a mixer that mixes baseband signals from received signals, the mixer comprising a dual inductor circuit including:
- a first inductor defining a first terminal and a second terminal, wherein the first inductor coils from the first and second terminals to a ground terminal; and
a second inductor disposed inside the first inductor, the second inductor defining a third terminal and a fourth terminal, wherein the second inductor coils from the third and fourth terminals to the ground terminal, and wherein third and fourth terminals of the second inductor are independent from the first inductor.
1 Assignment
0 Petitions
Accused Products
Abstract
This disclosure describes a dual inductor circuit, which may be particularly useful in a mixer of a wireless communication device to allow the mixer to operate for two different frequency bands. The dual inductor circuit comprises an inductor-within-inductor design in which a small inductor is disposed within a large inductor. The two inductors may share a ground terminal, but are otherwise physically separated and independent from one another. Terminals of the inner inductor, for example, are not tapped from the outer inductor, which can reduce parasitic effects and electromagnetic interference relative to tapped inductor designs. The independence of the inductors also allows the different inductors to define different resonance frequencies, which is desirable.
-
Citations
33 Claims
-
1. A multi-band wireless communication device comprising a mixer that mixes baseband signals from received signals, the mixer comprising a dual inductor circuit including:
-
a first inductor defining a first terminal and a second terminal, wherein the first inductor coils from the first and second terminals to a ground terminal; and a second inductor disposed inside the first inductor, the second inductor defining a third terminal and a fourth terminal, wherein the second inductor coils from the third and fourth terminals to the ground terminal, and wherein third and fourth terminals of the second inductor are independent from the first inductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A dual inductor circuit comprising:
-
a first inductor defining a first terminal and a second terminal, wherein the first inductor coils from the first and second terminals to a ground terminal; and a second inductor disposed inside the first inductor, the second inductor defining a third terminal and a fourth terminal, wherein the second inductor coils from the third and fourth terminals to the ground terminal, and wherein third and fourth terminals of the second inductor are independent from the first inductor. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
-
21. A method comprising mixing received wireless signals to baseband signals using a selected inductor of a dual inductor circuit in a wireless communication device, the dual inductor circuit including:
-
a first inductor defining a first terminal and a second terminal, wherein the first inductor coils from the first and second terminals to a ground terminal; and a second inductor disposed inside the first inductor, the second inductor defining a third terminal and a fourth terminal, wherein the second inductor coils from the third and fourth terminals to the ground terminal, and wherein third and fourth terminals of the second inductor are independent from the first inductor. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
-
-
33. A multi-band wireless communication device comprising a mixer that mixes baseband signals onto a carrier, the mixer comprising a dual inductor circuit including:
-
a first inductor defining a first terminal and a second terminal, wherein the first inductor coils from the first and second terminals to a ground terminal; and a second inductor disposed inside the first inductor, the second inductor defining a third terminal and a fourth terminal, wherein the second inductor coils from the third and fourth terminals to the ground terminal, and wherein third and fourth terminals of the second inductor are independent from the first inductor.
-
Specification