A new structure of microwave ultrawide-band differential phase shifter

Differential phase shifters based on Schiffman type‐C and type‐F networks with wide phase shift range

“…For the smallest impedance ratio, we set ρ r = ρ m . By virtue of (10) and (11), the phase shift values of the proposed phase shifter under different impedance ratios can be obtained. For comparison, Figure 2 also gives the maximum phaseshifting values of different types of Schiffman phase shifters (ρ m ≤ 4), where the detailed descriptions are given in Table 1.…”

A 45° phase shifter in microstrip-slot technology for beam forming network application

“…The reference line length, L r is 29 mm. The desired differential phase shift value of the phase shifter is defined as (4) as adopted from [9].…”

All‐pass dispersion synthesis using microwave C‐sections

“…The only existing techniques toward this purpose are in the form of closed-form iterative procedures and are restricted to low-frequency phase filters, realized as lumped-element all-pass filters based on lattice networks [11]. On the other hand, high-frequency phase filters, realized in the form of distributed all-pass networks, are usually synthesized via optimization procedures [12][13][14], with the exception of a few works where closed-form iterative procedures have been developed for specific mathematical forms of the phase functions [15,16]. Recently, a closed-form phase synthesis procedure has been proposed for the reflection-type one-port all-pass filter to synthesize arbitrary group delay response [6].…”