A phase-calibration circuit including a pattern generator, a phase adjuster, a rotate register unit, a detector unit, and an optimization unit is disclosed. The front end contains a plurality of discontinuities such that a first distance from a reference point on a longitudinal axis of the base portion to a first point on the front end is different than a second distance from the reference point to a second point on the front end. The spring latch plunger’s head portion selectively engages the spring latch at different locations when the door is fastened. The IFA antenna is configured to transmit and receive within the cellular frequency band via a capacitive tap, and the loop antenna is configured to transmit and receive within the PCS frequency band via an impedance matching stub and ground location. A receiver rib has an outer face to engage an inner face of the respective hook. An active matrix liquid crystal display device uses a polysilicon film for its TFT active layer constituting a pixel matrix circuit because of low off current characteristics.