## Nonsynchronous Noncommensurate Impedance Transformers

Publication: Research - peer-review › Journal article – Annual report year: 2012

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**Nonsynchronous Noncommensurate Impedance Transformers.** / Zhurbenko, Vitaliy; Kim, K.

Publication: Research - peer-review › Journal article – Annual report year: 2012

### Harvard

*Progress in Electromagnetics Research B*, vol 42, pp. 405-424.

### APA

*Progress in Electromagnetics Research B*,

*42*, 405-424.

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### MLA

*Progress in Electromagnetics Research B*. 2012, 42. 405-424.

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### Bibtex

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### RIS

TY - JOUR

T1 - Nonsynchronous Noncommensurate Impedance Transformers

AU - Zhurbenko,Vitaliy

AU - Kim,K

PY - 2012

Y1 - 2012

N2 - Nonsynchronous noncommensurate impedance transformers consist of a combination of two types of transmission lines: transmission lines with a characteristic impedance equal to the impedance of the source, and transmission lines with a characteristic impedance equal to the load. The practical advantage of such transformers is that they can be constructed using sections of transmission lines with a limited variety of characteristic impedances. These transformers also provide comparatively compact size in applications where a wide transformation ratio is required. This paper presents the data which allowsto estimate the achievable total electrical length and in-band reflection coefficient for transformers consisting of up to twelve transmission line sections in the range of transformation ratios r = 1:5 to 10 and bandwidth ratios Â = 2 to 20. This data is obtained using wave transmission matrix approach and experimentally verified by synthesizing a 12-section nonsynchronous noncommensurate impedance transformer. The measured characteristics of the transformer are compared to the characteristics of a conventional tapered line transformer.

AB - Nonsynchronous noncommensurate impedance transformers consist of a combination of two types of transmission lines: transmission lines with a characteristic impedance equal to the impedance of the source, and transmission lines with a characteristic impedance equal to the load. The practical advantage of such transformers is that they can be constructed using sections of transmission lines with a limited variety of characteristic impedances. These transformers also provide comparatively compact size in applications where a wide transformation ratio is required. This paper presents the data which allowsto estimate the achievable total electrical length and in-band reflection coefficient for transformers consisting of up to twelve transmission line sections in the range of transformation ratios r = 1:5 to 10 and bandwidth ratios Â = 2 to 20. This data is obtained using wave transmission matrix approach and experimentally verified by synthesizing a 12-section nonsynchronous noncommensurate impedance transformer. The measured characteristics of the transformer are compared to the characteristics of a conventional tapered line transformer.

M3 - Journal article

VL - 42

SP - 405

EP - 424

JO - Progress in Electromagnetics Research B

T2 - Progress in Electromagnetics Research B

JF - Progress in Electromagnetics Research B

SN - 1937-6472

ER -