Apparatus and method generating multi RF tone signals in UWB communication system

• US 20050282514A1
• Filed: 05/25/2005
• Published: 12/22/2005
• Est. Priority Date: 05/25/2004
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Eun-chul, Suh, Chun-deok, Lee, Sang-gug, Phan, Tuan-anh, Kang, Min-suk, Kim, Chang-wam
• Granted Patent: US 7,536,163 B2
• Time in Patent Office: Days
• US Class Current: 455/313
• CPC Class Codes: H04B 1/0032 with analogue quadrature frequency conversion to and from the baseband quadrature modulators and demodulators per se H03D3/007, H03C3/40
• CPC Class Codes: H04B 1/28 the receiver comprising at least one semiconductor device having three or more electrodes

Abstract

An apparatus and method for converting a frequency of a high frequency signal received from an antenna in an ultra wide band communication system transmitting and receiving using at least two reference frequencies. The method includes generating generation frequencies having frequencies set to convert the frequency of the high frequency signal and mixing the frequency of the high frequency signal and the generation frequencies in at least two stages.

Claims

1. A method of converting a frequency of an ultra wide band (UWB) communication high frequency signal received from an antenna in an ultra wide band (UWB) communication system transmitting and receiving using at least two reference frequencies, comprising:

generating generation frequencies having frequencies set to convert the frequency of the high frequency signal; and

mixing the frequency of the high frequency signal and the generation frequencies at least once to generate an intermediate frequency signal and mixing the intermediate frequency signal and the generation frequencies to generate low frequency signals used in the UWB communication system.

2. The method of claim 1, wherein the at least two reference frequencies comprise at least one of 3432 MHz, 3960 MHz, and 4488 MHz.

3. The method of claim 2, wherein the reference frequencies respectively correspond to frequencies of sub-bands of a frequency band for UWB communication.

4. The method of claim 1, wherein the generation frequencies comprise at least one of 1320 MHz, 2112 MHz, 2640 MHz and 3168 MHz.

5. The method of claim 3, wherein the mixing of the frequency of the high frequency signal and the generation frequencies at least once to generate the intermediate frequency signal and mixing the intermediate frequency signal and the generation frequencies to generate low frequency signals used in the UWB communication system comprises:

mixing the frequency of the high frequency signal with one of the generation frequencies 2112 MHz, 2640 MHz and 3168 MHz to generate the intermediate frequency; and

mixing the intermediate frequency with the generation frequency of 1320 MHz.

6. The method of claim 5, wherein I and Q components are extracted from the generation frequency of 1320 MHz and mixed with the intermediate frequency.

7. The method of claim 4, wherein the generation frequencies of 2112 MHz and 3168 MHz are generated by dividing the generation frequency of 2640 MHz into frequencies of 528 MHz and mixing the frequencies of 528 MHz with the generation frequency of 2640 MHz.

9. The apparatus of claim 7, wherein the at least two reference frequencies comprise at least one of 3432 MHz, 3960 MHz and 4488 MHz.

10. The apparatus of claim 9, wherein the reference frequencies respectively correspond to frequencies of sub-bands of a frequency band for UWB communication.

8. An apparatus for converting a frequency of a ultra wide band (UWB) communication high frequency signal received from an antenna in an ultra wide communication system transmitting and receiving using at least two reference frequencies, comprising:

a sub-band generator generating generation frequencies having frequencies set to convert the frequency of the high frequency signal; and

at least two mixers respectively mixing the frequency of the high frequency signal with the generation frequencies at least once to generate an intermediate frequency signal and mixing the intermediate frequency signal and the generation frequencies to generate low frequency signals used in the UWB communication system.

11. The apparatus of claim 8, wherein the sub-band generator generates the generation frequencies to comprise at least one of 1320 MHz, 2112 MHz, 2640 MHz and 3169 MHz.

12. The apparatus of claim 8, wherein the at least two mixers comprise:

a first mixer mixing the frequency of the high frequency signal with one of the generation frequencies of 2112 MHz, 2640 MHz and 3168 MHz to generate the intermediate frequency; and

second mixers mixing the intermediate frequency with the generation frequency of 1320 MHz.

13. The apparatus of claim 12, wherein the second mixers mix the intermediate frequency with I and Q components extracted from the generation frequency of 1320 MHz transmitted from the sub-band generator.

14. The apparatus of claim 11, wherein the sub-band generator comprises:

a divider dividing the generation frequency of 2640 MHz into a frequency of 528 MHz; and

a mixer mixing the frequency of 528 MHz and the generation frequency of 2640 MHz to generate the generation frequencies of 2112 MHz and 3168 MHz.

15. An ultra wide band (UWB) communication apparatus, comprising:

an attenna receiving a high frequency signal;

a band pass filter band pass filtering the high frequency signal;

a sub-band generator generating generation frequencies having frequencies set to convert the frequency of the high frequency signal;

at least two mixers respectively mixing the frequency of the high frequency signal with the generation frequencies at least once to generate an intermediate frequency signal and mixing the intermediate frequency signal and the generation frequencies to generate low frequency signals used in the UWB communication system; and

at least one low pass filter to low pass filter the generated low frequency signals.

16. The communication apparatus of claim 15, wherein the sub-band generator generates the generation frequencies to comprise at least one of 1320 MHz, 2112 MHz, 2640 MHz and 3169 MHz.

17. The communication apparatus of claim 16, wherein the at least two mixers comprise:

a first mixer mixing the frequency of the high frequency signal with one of the generation frequencies of 2112 MHz, 2640 MHz and 3168 MHz to generate the intermediate frequency; and

second mixers mixing the intermediate frequency with the generation frequency of 1320 MHz.

18. The communication apparatus of claim 17, wherein the second mixers mix the intermediate frequency with I and Q components extracted from the generation frequency of 1320 MHz transmitted from the sub-band generator.

19. The communication apparatus of claim 16, wherein the sub-band generator comprises:

a divider dividing the generation frequency of 2640 MHz into a frequency of 528 MHz; and

a mixer mixing the frequency of 528 MHz and the generation frequency of 2640 MHz to generate the generation frequencies of 2112 MHz and 3168 MHz.