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1. WO2007011556 - A COMPACT RADIO COMMUNICATIONS DEVICE

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We claim:
1. A radio communications device comprising:
a chassis having an outer frame with at least one partition disposed therein;
a substantially rigid housing having at least a user interface housing member and at least one opposite housing member, the user interface housing member being mounted to the chassis to form at least one user interface component chamber with the with a first surface of the partition, and the opposite housing member being mounted to the chassis to form at least one other chamber with the with a second surface of the partition;
a keypad switch mount supporting a plurality of switch contacts aligned with respective keypad keys, the keypad switch mount being disposed in the user interface component chamber and supported by the first surface of the partition; a display screen disposed in the user interface component chamber and supported by the first surface of the partition;
a battery chamber formed in the other component chamber; and
at least one circuit substrate with processor and transceiver circuitry mounted thereon, the substrate being disposed in the other component chamber and supported by the second surface of the partition.

2. A radio communications device as claimed in claim I3 wherein the partition is electrically conductive and forms a ground plane for the device.

3. A radio communications device as claimed in claim 1, wherein the partition has at least one substantially planar surface.

4. A radio communications device as claimed in claim 1, wherein the partition is formed from a metal sheet.

5. A radio communications device as claimed in claim 1, wherein the display screen and keypad switch mount are located in a substantially juxtaposition relationship.

6. A radio communications device as claimed in claim 4, wherein the battery chamber and circuit substrate are located in a substantially juxtaposition relationship.

7. A radio communications device as claimed in claim 5, wherein the battery chamber is located proximal to the keypad switch mount;

8. A radio communications device as claimed in claim 6, wherein the circuit substrate is located proximal to the display screen.

9. A radio communications device as claimed in claim 1, wherein the circuit substrate is a circuit board with integrated circuit packages surface mounted on opposite sides thereof.

10. A radio communications device as claimed in claim 8, wherein there are no integrated circuit package surface mounted on the keypad switch mount.

11. A radio communications device as claimed in claim 1, wherein the keypad switch mount and display screen are located to be in a non-overlapping longitudinal relationship.

12. A radio communications device as claimed in claim 1, wherein the keypad switch mount and circuit substrate are located to be in a non-overlapping longitudinal relationship.