Synthesized transmission lines: design, circuit by Tzyh-Ghuang Ma, Chao-Wei Wang, Chi-Hui Lai, Ying-Cheng Tseng

By Tzyh-Ghuang Ma, Chao-Wei Wang, Chi-Hui Lai, Ying-Cheng Tseng

An unique complex point reference attractive to either the microwave and antenna communities

• an outline of the learn task dedicated to the synthesis of transmission strains through electrically small planar components, highlighting the most microwave functions and the possibility of circuit miniaturization
• Showcases the examine of most sensible specialists within the field
• offers cutting edge subject matters on synthesized transmission traces, which characterize basic parts in microwave and mm-wave built-in circuits, together with on-chip integration
• Covers issues which are relating to the microwave group (transmission lines), and issues which are on the topic of the antenna neighborhood (phased arrays), broadening the readership allure

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Additional info for Synthesized transmission lines: design, circuit implementation, and phased array applications

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1, pp. 62–63, Jan. 2009. [17] R. E. Collin, Foundations for Microwave Engineering, 2nd edn, New York: McGraw‐Hill, 1992. ‐R. Eisenstadt and Y. Eo, “S‐parameter‐based IC interconnect transmission line characterization,” IEEE Trans. , Hybrids, Manufact. , vol. 15, pp. 483–490, Aug. 1992. ‐W. Vogel, “Analysis and design of lumped‐ and lumped‐distributed‐element directional couplers for MIC and MMIC applications,” IEEE Trans. Microw. , vol. 40, no. 2, pp. 253–262, Feb. 1992. [20] E. Gandini, M. Ettorre, R.

13 λg (λg: the guided wavelength of a conventional 50‐Ω microstrip line at the same frequency). It is 27% the size of its conventional counterpart. 5 to 12 GHz. 1 GHz, or more than two octaves. This feature is not feasible by using conventional uniform transmission lines. The rat‐race coupler, or the 180° coupler, consists of six 70‐Ω 90° transmission lines. 2 Photograph of the miniaturized quadrature hybrid. Source: Wang 2007 [1]. 3 Simulated and measured S‐parameters of the miniaturized quadrature hybrid using synthesized microstrip lines.

71) C R LL p is the periodicity. 22 (a) Layout and (b) S‐parameters (measurement) of a dual‐band branch‐line coupler using CRLH lines. Source: Lin 2004 [37]. 21 compares the dispersion diagrams of the balanced and unbalanced CRLH transmission lines. For the unbalanced case, a bandgap between the left‐handed and right‐handed passbands is clearly observed. With the balanced condition, the bandgap is disappeared and the operating band becomes continuous. A number of positive as well as negative resonance modes, occurring when βp = ±nπ, are observed.

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