A Broadband Planar Magic-T Using MicrostripaSlotline Transitions
The improved version of a broadband planar magic-T using microstrip-slotline transitions is presented. The design implements a small microstrip-slotline tee junction with minimum size slotline terminations to reduce radiation loss. A multisection impedance transformation network is used to increase...
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| Veröffentlicht in: | IEEE transactions on microwave theory and techniques 2008-01, Vol.56 (1) |
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| container_title | IEEE transactions on microwave theory and techniques |
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| creator | Kongpop U-yen, Kongpop U-yen Wollack, EJ Papapolymerou, J Laskar, J |
| description | The improved version of a broadband planar magic-T using microstrip-slotline transitions is presented. The design implements a small microstrip-slotline tee junction with minimum size slotline terminations to reduce radiation loss. A multisection impedance transformation network is used to increase the operating bandwidth and minimize the parasitic coupling around the microstrip-slotline tee junction. As a result, the improved magic-T has greater bandwidth and lower phase imbalance at the sum and difference ports than the earlier magic-T design. The experimental results show that the 10-GHz magic-T provides more than 70% of 1-dB operating bandwidth with the average in-band insertion loss of less than 0.6 dB. It also has phase and amplitude imbalance of less than plusmn1deg and plusmn0.25 dB, respectively. |
| doi_str_mv | 10.1109/TMTT.2007.912213 |
| format | Article |
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The design implements a small microstrip-slotline tee junction with minimum size slotline terminations to reduce radiation loss. A multisection impedance transformation network is used to increase the operating bandwidth and minimize the parasitic coupling around the microstrip-slotline tee junction. As a result, the improved magic-T has greater bandwidth and lower phase imbalance at the sum and difference ports than the earlier magic-T design. The experimental results show that the 10-GHz magic-T provides more than 70% of 1-dB operating bandwidth with the average in-band insertion loss of less than 0.6 dB. 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The design implements a small microstrip-slotline tee junction with minimum size slotline terminations to reduce radiation loss. A multisection impedance transformation network is used to increase the operating bandwidth and minimize the parasitic coupling around the microstrip-slotline tee junction. As a result, the improved magic-T has greater bandwidth and lower phase imbalance at the sum and difference ports than the earlier magic-T design. The experimental results show that the 10-GHz magic-T provides more than 70% of 1-dB operating bandwidth with the average in-band insertion loss of less than 0.6 dB. It also has phase and amplitude imbalance of less than plusmn1deg and plusmn0.25 dB, respectively.</abstract><doi>10.1109/TMTT.2007.912213</doi></addata></record> |
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| identifier | ISSN: 0018-9480 |
| ispartof | IEEE transactions on microwave theory and techniques, 2008-01, Vol.56 (1) |
| issn | 0018-9480 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1671315122 |
| source | IEEE Electronic Library (IEL) |
| subjects | Amplitudes Bandwidth Broadband Joining Microwaves Noise levels Ports Transformations |
| title | A Broadband Planar Magic-T Using MicrostripaSlotline Transitions |
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