{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,23]],"date-time":"2023-10-23T07:40:01Z","timestamp":1698046801861},"reference-count":11,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2008,9,12]],"date-time":"2008-09-12T00:00:00Z","timestamp":1221177600000},"content-version":"vor","delay-in-days":6770,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Trans Emerging Tel Tech"],"published-print":{"date-parts":[[1990,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The model of a distributed amplifier as two cascaded chains coupled at discrete points by active devices is considered from a network theoretic point of view. The active devices are represented by a simplified equivalent circuit, consisting of a current source and of input and output capacitances. The connecting structures are assumed to be lossless, but no initial assumption of image parameter lines is made. This mode of operation is deduced as an optimum from the network equations. The chains can be identified as gate and drain lines formed using a number of MESFET's, if these are assumed to be representable by the equivalent circuits described above. The objective is to sum the gains of the individual devices with maximum gain bandwidth product (GBW) as limited by the parasitic capacitances. If each chain operates with a <jats:italic>single<\/jats:italic> resistor, i.e. source in the gate line, load in the drain line, it is shown that with two resistor (input and output) terminations per line, maximum GBW is the sum of individual element GBW's, and <jats:italic>requires<\/jats:italic> constant\u2010k image parameter operation of the lines. Under these conditions the gain <jats:italic>must<\/jats:italic> peak sharply at the edge of the band. Any deviation from this mode of operation, e.g. to suppress the peak, will result in a reduction of GBW, and one of the illustrative examples consists of two simple non\u2010image LC ladder chains designed so the response peak is suppressed with nominal deviation from maximum GBW. The above results strictly hold only under the simplifying assumptions that the whole structure is lossless: although the assumptions of the paper represent ideal operating conditions, the results still provide an upper bound for the limits of reachable gain.<\/jats:p>","DOI":"10.1002\/ett.4460010204","type":"journal-article","created":{"date-parts":[[2008,9,12]],"date-time":"2008-09-12T12:55:18Z","timestamp":1221224118000},"page":"93-102","source":"Crossref","is-referenced-by-count":0,"title":["Performance limitations for distributed amplifiers"],"prefix":"10.1002","volume":"1","author":[{"given":"Herbert J.","family":"Carlin","sequence":"first","affiliation":[]},{"given":"Pier Paolo","family":"Civalleri","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2008,9,12]]},"reference":[{"key":"e_1_2_1_2_2","unstructured":"W. S.Percival:Thermionic valve circuits. British Patent 460 562 Jan.1937."},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1109\/JRPROC.1939.228511"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1109\/JRPROC.1948.231624"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.1109\/JRPROC.1950.233433"},{"key":"e_1_2_1_6_2","first-page":"5","article-title":"Distributed amplifiers: some new methods for controlling gain\/frequency and transient responses of amplifers having moderate bandwidths","volume":"101","author":"Bassett H. G.","year":"1954","journal-title":"Proc. IEE"},{"issue":"6","key":"e_1_2_1_7_2","first-page":"447","article-title":"On theory and performance of solid\u2010state microwave distribured amplifier","volume":"31","author":"Niclas K. B.","year":"1983","journal-title":"IEEE Trans"},{"issue":"3","key":"e_1_2_1_8_2","first-page":"268","article-title":"MESFET distributed amplifier design guidelines","volume":"32","author":"Beyer J. B.","year":"1984","journal-title":"IEEE Trans"},{"issue":"12","key":"e_1_2_1_9_2","first-page":"1559","article-title":"A high performance 2\u201318.5 CHz distributed amplifier \u2010 Theory and experiment","volume":"34","author":"McKay T.","year":"1986","journal-title":"IEEE Trans"},{"key":"e_1_2_1_10_2","doi-asserted-by":"publisher","DOI":"10.1021\/cen-v023n004.p345"},{"key":"e_1_2_1_11_2","unstructured":"C. N.Near:Lossless N\u2010port Realizability and gain\u2010bandwidth theory with applications to broadband amplifier. Ph. D. Dissertation Cornell University May1987."},{"key":"e_1_2_1_12_2","first-page":"161","volume-title":"Communication Networks","author":"Guillemin E.","year":"1935"}],"container-title":["European Transactions on Telecommunications"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fett.4460010204","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ett.4460010204","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,22]],"date-time":"2023-10-22T09:22:38Z","timestamp":1697966558000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/ett.4460010204"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1990,3]]},"references-count":11,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1990,3]]}},"alternative-id":["10.1002\/ett.4460010204"],"URL":"https:\/\/doi.org\/10.1002\/ett.4460010204","archive":["Portico"],"relation":{},"ISSN":["1124-318X","1541-8251"],"issn-type":[{"value":"1124-318X","type":"print"},{"value":"1541-8251","type":"electronic"}],"subject":[],"published":{"date-parts":[[1990,3]]}}}