| Paper Abstract and Keywords |
| Presentation |
2025-01-30 14:05
Experimental study on radiation-power improvement of balanced up-converter integrated active antenna with differential-feed antenna
Shiryu Araki, Takayuki Tanaka, Ichihiko Toyoda (Saga Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
This paper proposes an active integrated antenna with a balanced up-converter for miniature transmitter. The proposed active integrated antenna effectively suppresses the radiation of the local oscillator (LO) signal without using an RF hybrid coupler, which is required for conventional balanced up-converters, by utilizing the characteristics of a differential-feed antenna. Simulations have also confirmed that the conversion gain of the proposed active antenna can be improved by reusing the LO power reflected at the antenna. In this paper, the performance of a balanced up-converter with two unit-mixers, an LO power divider, and IF-band coupler is verified through simulations and measurements of a prototype circuit. The antenna’s reflection characteristics are also measured. Furthermore, in order to confirm the conversion-gain improvement using the LO signal reflection, the radiated power is also measured by connecting the balanced up-converter with several antennas having different feed-line length. Even though the measured results do not show the conversion-gain improvement, the suppression of the LO leak power is confirmed. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Active Integrated Antenna / Balanced Up-Converter / Microstrip Antenna / / / / / |
| Reference Info. |
ITE Tech. Rep., vol. 49, no. 2, BCT2025-4, pp. 13-16, Jan. 2025. |
| Paper # |
BCT2025-4 |
| Date of Issue |
2025-01-23 (BCT) |
| ISSN |
Online edition: ISSN 2424-1970 |
| Download PDF |
|
| Conference Information |
| Committee |
BCT KYUSHU IEEE-BT IEEE-AP-S-FUKUOKA |
| Conference Date |
2025-01-30 - 2025-01-31 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Kumamoto Univ., Kurokami Minami Dist., Kurokami Minami W3 |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
BCT |
| Conference Code |
2025-01-BCT-KYUSHU-BT-AP-S-FUKUOKA |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Experimental study on radiation-power improvement of balanced up-converter integrated active antenna with differential-feed antenna |
| Sub Title (in English) |
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| Keyword(1) |
Active Integrated Antenna |
| Keyword(2) |
Balanced Up-Converter |
| Keyword(3) |
Microstrip Antenna |
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| 1st Author's Name |
Shiryu Araki |
| 1st Author's Affiliation |
Saga University (Saga Univ.) |
| 2nd Author's Name |
Takayuki Tanaka |
| 2nd Author's Affiliation |
Saga University (Saga Univ.) |
| 3rd Author's Name |
Ichihiko Toyoda |
| 3rd Author's Affiliation |
Saga University (Saga Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2025-01-30 14:05:00 |
| Presentation Time |
20 minutes |
| Registration for |
BCT |
| Paper # |
BCT2025-4 |
| Volume (vol) |
vol.49 |
| Number (no) |
no.2 |
| Page |
pp.13-16 |
| #Pages |
4 |
| Date of Issue |
2025-01-23 (BCT) |