Journal ArticleDOI
Ferrite Elements for Hybrid Microwave Integrated Systems
J.L. Allen,D.R. Taft +1 more
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TLDR
In this article, the authors present performance data for several microstrip ferrite devices that can play an important role in the exploitation of microwave integrated circuits, including a fixed-field circulator with less than 0.4dB loss and greater than 20dB isolation over the 6.5-to 9.3-GHz band.Abstract:
Complete realization of the potentialities of hybrid microwave integrated circuits will require both semiconductor and ferrite elements. This paper presents performance data for several microstrip ferrite devices that can play an important role in the exploitation of microwave integrated circuits. Data on both fixed-field and latched microstrip junction circulators are given including a fixed-field circulator with less than 0.4-dB loss and greater than 20-dB isolation over the 6.5- to 9.3-GHz band. The characteristics of microstrip meander-line phasers are discussed, and a simple, rugged technique for fabricating single-crystal YIG devices by embedding the YIG element in the substrate is presented.read more
Citations
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Journal ArticleDOI
An Annotated Bibliography of Microwave Circulators and Isolators: 1968-1975
TL;DR: A bibliography of microwave circulators and isolators from 1968 to 1975 is presented in this paper, where some observations on selected topics are made, such as microwave power and microwave power control.
Journal ArticleDOI
Ferrimagnetic Parts for Microwave Integrated Circuits
TL;DR: In this paper, the design and performance of various ferrimagnetic components as functional blocks for use in microwave integrated modules are described as well as their utilization in various multifunction modules: junction circulators both fixed bias and latching including their use as isolators, duplexers, switches, modulators, and other signal processing circuits.
Journal ArticleDOI
On the flicker noise of ferrite circulators for ultra-stable oscillators
TL;DR: Why the circulator noise must be measured in isolation mode, a measurement scheme, and experimental results are provided, which give information on the mechanical stability of the microwave assembly.
Journal ArticleDOI
A 26-GHz Band Integrated Circuit of a Double-Balanced Mixer and Circulators
TL;DR: In this paper, a double-balanced mixer and ferrite-disk type circulators have been successfully achieved in the 26 GHz band, where the total single-sideband noise figure of the integrated circuit, composed of a mixer and two circulators, is 8.5 dB, including the noise contribution from an IF amplifier.
Journal ArticleDOI
Microstripline ferrite devices using surface field effects for microwave integrated circuits
TL;DR: In this article, the performance of a 50-ohm microstripline ferrite substrate was optimized to give a forward loss of 5 dB with a reverse loss in excess of 30 dB at resonance.
References
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Journal ArticleDOI
Operation of the Ferrite Junction Circulator
C.E. Fay,R.L. Comstock +1 more
TL;DR: In this article, a detailed field theory of the strip-line Y-junction circulator operating with n = 1 is presented, and experiments designed to confirm the validity of the rotating normal mode description of circulator action are presented; these include measurements of mode frequencies and electric field patterns.
Journal ArticleDOI
On the principle of stripline circulation
TL;DR: In this paper, it was shown that a circular disc of gyromagnetic material, when placed between two infinite plane conductors and magnetized axially, can support cylindrical modes having no field variation in the axial direction.
Proceedings ArticleDOI
Ferrite Microstrip Propagation
TL;DR: In this paper, the utility of externally magnetized microstrip devices was evaluated and it was shown that externally applied magnetic fields show promise of greater figure of merit than traditional magnetic fields.