標題: | An novel l-shape active leaky-wave antenna with power combining and scanning capability |
作者: | Chen, I-Yu Wang, Chien-Jen Jou, Christina F. 電信工程研究所 Institute of Communications Engineering |
關鍵字: | sum;difference;power combining;switchable |
公開日期: | 2005 |
摘要: | In this paper, an active-integrated leaky-wave antenna with power combining scanning capability is presented. This leaky-wave antenna with the novel perpendicular L-shape topology is integrated with a varactor-tuned high-electron mobility transistor (HEMT) voltage controlled oscillator (VCO) on the same plane. Changing the VCO frequency, we can control not only the dual-beam scanning angle but also derive the power combining effect with the sum (Sigma) or difference (Delta) radiation patterns. The power combing effect of difference mode, which is the dual-beam pattern and the sum mode pattern, which is a 3-beam pattern, with, the 3rd beam located along the middle direction (45 degrees, 135 degrees) of the X and Y axes. The measured scanning angle is steered over a range of 24-46 degrees for the right beam and 127-148 degrees for the left beam. Compared with single microstrip leaky-wave antenna, the L-shape LWAs configuration has the advantages of switchable radiation patterns as the VCO varied from 10 GHz to 10.6 GHz. |
URI: | http://hdl.handle.net/11536/17717 |
ISBN: | 0-7803-9433-X |
期刊: | 2005 ASIA-PACIFIC MICROWAVE CONFERENCE PROCEEDINGS, VOLS 1-5 |
起始頁: | 2642 |
結束頁: | 2645 |
Appears in Collections: | Conferences Paper |