Multisection Microwave Phase-Shift Network (Correspondence)

Schiffman, B.M.

doi:10.1109/tmtt.1966.1126220

Cited by 29 publications

(11 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [2], the analysis of standard schiffman phase shifters studied, also design curves is provided. In [3,4], to achieve a wider bandwidth with acceptable phase error, edge-coupled lines approach has been used. In structures of the edge-coupled lines, the coupling coefficient depends on distance of two coupled lines as well dielectric constant in the substrate.…”

Section: Introductionmentioning

confidence: 99%

An Innovative Ultra Wideband Microstrip Phase Shifter Based on the LANGE Coupler

Sarkooyeh¹,

Salimi²

2015

IJSEA

View full text Add to dashboard Cite

Abstract:The method presented in this paper is beased on coupled line in the standard schiffman phase shifters structure and replace it with lange coupler. To having a wider bandwidth, the stronger coupling is required. One way to achieve strong coupling is using of the parallel coupled lines that this property exist in the lange coupler. So this paper discusses the design of fixed broadband phase shifter by using the lange coupler and a novel phase shifters will be introduced according to the standard schiffman phase shifters. Finally optimal parameters to achieve the desired performance will be shown.

show abstract

Section: Introductionmentioning

confidence: 99%

An Innovative Ultra Wideband Microstrip Phase Shifter Based on the LANGE Coupler

Sarkooyeh¹,

Salimi²

2015

IJSEA

View full text Add to dashboard Cite

show abstract

“…Many authors have used different techniques to reduce phase error over narrow band. Some of the methods used for designing phase shifter include loaded transmission lines with and without using T shaped stepped impedance open stub [1], [2], [3], two coupled sections together with uniform lines [4] and multi-sections Schiffman lines with impedance matching [5], [6]. Bandwidth of multi-octaves can be achieved by employing multi-sections Schiffinan lines but controlling coupling factors in many coupled lines is difficult.…”

Section: Introductionmentioning

confidence: 99%

Hybrid type of broad-band microwave phase shifter using schiffman lines

Hussain

Rashid

Ullah

2013

Proceedings of 2013 10th International Bhurban Conference on Applied Sciences &Amp; Technology (IBCAST)

View full text Add to dashboard Cite

This paper presents a new h y brid t y pe of phase shifter that emplo y s basie Schiffman lines. Compared with conventional coupled line and Schiffman line phase shifters the new h y brid design shows advantage of optimall y ver y small phase shift error of (±5°) over an entire band of 2. . To validate the method, a 90° phase shifter is designed and simulated.Index Terms -H y brid broadband phase shifter, Schiffman lines

show abstract

“…However, when the Schiffman phase shifter is realized using microstrip technology, because of the unequal odd and even mode velocities, poor performance is achieved [2]. Much effort has been put to improve the performance of the Schiffman phase shifter by, for example, using of a cascade pairs of coupled transmissionlines connected together [3] and multiple parallel-coupled quarter-wave sections [4]. By modifying the ground-plane underneath the coupled lines, wideband Schiffman phase shifter is achieved from 1.0 to 3.5 GHz with ±5 • phase imbalance [5].…”

Section: Introductionmentioning

confidence: 99%