![]() ![]() ![]() We seek the value of smallest positive value of Is the phase propagation constant for this section of transmission line and The length of the first section of the transmission line (adjacent to the antenna) is determined using Equation 3.19.1: Figure 3.19.2: Impedance-matching a complex-valued load impedance using quarter-wavelength transmission line. In this manner, the real component of the resulting impedance may then be transformed using the quarter-wave matching technique described earlier in this section. After eliminating the imaginary component of i.e., there are two changes in the sign of the imaginary component of Of this transmission line is not critical and can be selected for convenience. This is accomplished using Equation 3.19.1 (quite simple using a numerical search) or using the Smith chart (see “Additional Reading” at the end of this section). In this scheme, the load impedance is first transformed to a real-valued impedance using a length One possible workaround in this case is the two-stage strategy shown in Figure 3.19.2. Has a significant imaginary-valued component and matching to a real-valued source impedance is desired. In particular, this method is not suitable if It should be noted that for this scheme to yield a real-valued characteristic impedance, the product of the source and load impedances must be a real-valued number. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |