Patent ID: 6876836
Filing Date: 2005-04-05
Classification: H04B,H05K

Abstract:
1. A layout of a wireless communication circuit on a printed circuit board (PCB), which is a rectangular board having a first side, a second side, a third side, and a fourth side in counterclockwise, wherein the first and the third sides are shorter than the second and the fourth sides, the first side is a Y-axis and the second side is an X-axis, the layout comprising: a first antenna, located at a corner between the first side and the second side; an antenna switch, coupled with the first antenna, and located at about a middle y-coordinate and a first x-coordinate; a first filter, coupled with the antenna switch, located under the antenna switch at a smaller y-coordinate; a RF integrated circuit (RFIC), coupled with the first filter, and located at a larger x-coordinate than the first filter, wherein a sensitive input/output side of the RFIC is toward the second side of the PCB; a first regulator, located near the second side of the PCB and at a higher X-coordinate than the RFIC; a baseband/media access control (MAC), coupled with the RFIC, and located at about a middle y-coordinate and a higher x-coordinate than the first regulator; a global oscillator, located about a corner between the second side and the third side; a plurality of signal pins distributed along the third side of the PCB; a second regulator, located near the fourth side and having about the same x-coordinate of the first regulator; a power amplifier, coupled to the RFIC, located near the fourth side and about with the same x-coordinate of the RFIC, wherein the distance between the power amplifier and the RFIC is set to have sufficient value; a second filter, coupled to the power amplifier, located at a smaller x-coordinate and near the fourth side; a transmitting/receiving (T/R) switch, coupled to the second filter, and located at a lower y-coordinate than the second filter and about the same x-coordinate, wherein the T/R switch and the antenna switch are also coupled; and a second antenna, coupled to the T/R switch, located at a corner between the first side and the fourth side.