An antenna unit prevents a communication error by suppressing side lobes formed by an antenna coil segment of a readerwriter device. The hosiery support has a support element carried by the base. Polysilicon is then deposited in the trench and doped heavily and an anneal step is used to drive impurities into the top and sidewalls of the channel region thereby creating a \u201cwrap-around\u201d gate region which reaches down the sidewalls of the channel region to the channel-well PN junction. The primary control device controls data flow between the coupling device and each of the computer pointing mechanism and the data storage device.