Name
Abstract | ||
|---|---|---|
We propose a 180-degree branch line coupler composed of two types of iris-loaded waveguides. The proposed coupler consists of two main transmission lines and branch lines with different electrical lengths. Based on optimal electrical lengths, a 180-degree output phase difference can be achieved without additional phase shifters. The two main lines with different electrical lengths are realized by capacitive and inductive iris-loaded waveguides. The size of the proposed coupler is nearly half that of the conventional 180-degree branch line coupler with additional phase shifters. Thus, the proposed coupler is of advantage with respect to the conventional one. We designed a proposed coupler in the K-band for satellite communication systems. The measurement results demonstrate a reflection of -20 dB, isolation of -20 dB, coupling response of -3.1 + 0.1 dB/ - 0.1 dB, and phase differences of 0 + 0.1 deg/-1.4 deg and -180+0.5 deg/ - 2.3 deg at a bandwidth of 8% in the K-band. |
Year | DOI | Venue |
|---|---|---|
2021 | 10.1587/transele.2020ECP5006 | IEICE TRANSACTIONS ON ELECTRONICS |
Keywords | DocType | Volume |
waveguide, branch line, coupler, iris-loaded, phase shifter | Journal | E104C |
Issue | ISSN | Citations |
2 | 1745-1353 | 0 |
PageRank | References | Authors |
0.34 | 0 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Hidenori Yukawa | 1 | 0 | 1.01 |
| Yu Ushijima | 2 | 0 | 1.01 |
| Naofumi Yoneda | 3 | 3 | 5.50 |
| Moriyasu Miyazaki | 4 | 1 | 2.80 |