摘要:

AbstractLong delay lines can improve the performance and flexibility of radar test sets. Using a 2.25‐km‐long fiber optic link, we demonstrated generation of an ideal target for a radar repeater test set and measurement of phase noise closer than 100 Hz to a 9.6‐GHz radar carrier signal using a delay line discriminator phase‐noise t

ISSN:0895-2477    

DOI:10.1002/mop.4650010702

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1988

数据来源: WILEY

摘要:

AbstractThe use of optical fibers as the delay line element in radio frequency memory loops, promises light weight and small size devices with long time delays. This paper presents the experimental results and performance analysis of a 2‐6‐GHz fiber optic recirculating delay l

ISSN:0895-2477    

DOI:10.1002/mop.4650010703

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1988

数据来源: WILEY

摘要:

AbstractThe use of the bimodal optical computer (BOC) in determining the weights for an adaptive phased array radar is introduced. Interference canceling is presented for two cases: (1) assuming the direction of the jammer is known and (2) assuming no a priori information. The effect of the jammers on the array pattern is shown for up to four jammers.

ISSN:0895-2477    

DOI:10.1002/mop.4650010704

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1988

数据来源: WILEY

摘要:

AbstractThe dominant and first nine higher‐order modes in a suspended micro‐strip lines are accurately described from a thorough spectral‐domain approach. Then coupling coefficients between eigenmodes at a step width discontinuity to be used in the generalized scattering matrix formulation are directly computed in the spectral domain. Scattering parameters of the dominant mode in the Ka band are pres

ISSN:0895-2477    

DOI:10.1002/mop.4650010705

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1988

数据来源: WILEY

摘要:

AbstractDescriptions are given of the application of the classical conjugate‐gradient (CG) matrix solution algorithm and variants thereof (three types of preconditioner and the biconjugate gradient method) to the matrix equations obtained on application of the moment method to the reduced subproblems describing radiation from conducting bodies of revolution, and the associated numerical results. A recent debate in the literature on the interpretation of the application of CG methods to electromagnetic problems is put in perspectiv

ISSN:0895-2477    

DOI:10.1002/mop.4650010706

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1988

数据来源: WILEY

摘要:

AbstractRecently reported polarization insensitive heterodyne detection schemes that use the properties of polarized light are all shown to be related to the basic concept of simultaneously using two different frequency, orthogonally polarized optical fields. The various system design options associated with this concept are compared in terms of receiver complexity.

ISSN:0895-2477    

DOI:10.1002/mop.4650010707

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1988

数据来源: WILEY

摘要:

AbstractMatching transmission lines of different characteristic impedances with two stratified transmission line sections in cascade are demonstrated. The characteristic impedances of each of these sections will be identical to the impedances to be matched. The overall length of this linear transformer is significantly shorter than one quarter wavelength.

ISSN:0895-2477    

DOI:10.1002/mop.4650010708

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1988

数据来源: WILEY

摘要:

AbstractAn efficient numerical technique for the characterization of the single‐and multi‐level interconnections on the GaAs‐based VLSIs is presented. The algorithm employs an efficient and more flexible network analog method suitable for the finite‐dimensional interconnection configurations on the GaAs su

ISSN:0895-2477    

DOI:10.1002/mop.4650010709

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1988

数据来源: WILEY

摘要:

AbstractModification of Wheeler's expression for the characteristic impedance of a straight microstrip transmission line is derived for the computation of the characteristic impedance of a curved microstrip transmission line. Good agreement between computed and measured data is obtained.

ISSN:0895-2477    

DOI:10.1002/mop.4650010710

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1988

数据来源: WILEY

摘要:

AbstractThis paper describes a version of the dual‐model feed horn that is considered particularly suitable for application in receive‐only reflector antennas. Even though it was originally presented many years ago, to the authors' knowledge this type of biconical feed horn has not previously been analyzed or utilized. The present paper aims to describe the potential advantages of this feed horn for low‐cost satellite earth stations, and then briefly to illustrate the design methodology that was adopted. Finally, it presents some of the experimental and theoretical results, which are in good agreement and demonstrate the performance achievable with this class of

ISSN:0895-2477    

DOI:10.1002/mop.4650010711

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1988

数据来源: WILEY