4:1 bandwidth digital five bit MMIC phase shifters

Boire, D.C.; Onge, St.; Barratt, C.; Norris, George B.; Moysenko, Andy

doi:10.1109/mcs.1989.37265

Cited by 23 publications

(3 citation statements)

References 3 publications

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“…Sixteen-finger 64-μm total gate-width transistors are selected as switching devices. The two passive circuit structures: a π section of transmission lines and a coupled transmission line are circuit duals with inherent 180° phase difference for all frequencies, and behave as bandpass filters [10]. Both the π network and coupled lines are about quarter-wave length of the center frequency, and the lines are meandered for compact size.…”

Section: Circuit Designmentioning

confidence: 99%

A 40-74 GHz amplitude/phase control MMIC using 90-nm CMOS technology

Chang

Lei

et al. 2007

2007 European Microwave Integrated Circuit Conference

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The design and measurement results of a continuous amplitude/phase control CMOS MMIC are presented in this paper. This circuit uses the vector sum method to achieve continuous phase and amplitude control. The phase shifter demonstrates all continuous phase control and an insertion loss of 17 dB with 30-dB dynamic range from 40 to 75 GHz. The chip size is only 0.7 mm × 0.6 mm. To the best of the authors' knowledge, this circuit is the first demonstration of millimeter-wave phase shifters MMIC using the vector sum method, with the smallest chip size for all MMIC phase shifters and 360° phase-control circuits in frequencies above 5 GHz reported to date.Index Terms-CMOS, monolithic microwave integrated circuit (MMIC), phase shifter, vector sum method.

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Section: Circuit Designmentioning

confidence: 99%

A 40-74 GHz amplitude/phase control MMIC using 90-nm CMOS technology

Chang

Lei

et al. 2007

2007 European Microwave Integrated Circuit Conference

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“…RTPS solutions does not offer much flexibility in terms of dimensions, as the bulky 3-dB coupler requires a large area. This becomes especially critical in multi-bit RTPS implementations [18,19]. Furthermore, the bandwidth of the RTPS is dependent on the characteristics of the 3-dB coupler, and the reflective loads and traditional implementations offer limited bandwidths.…”

Section: Introductionmentioning

confidence: 99%

Compact Single-Unit Two-Bit Reflection-Type Phase Shifters with Large Phase Shift Range

Amin

Liu

et al. 2023

Electronics

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Multi-bit phase shifters are typically implemented by cascading multiple phase-shifting units, therefore incurring large dimensions and higher insertion losses. This paper presents highly compact single-unit two-bit reflection-type phase shifters (SUTBRTPSs), with large phase shifts range and lower insertion loss by using only one 3-dB hybrid coupler, unlike traditional multi-bit reflection-type phase shifters. To achieve this, two identical dual-voltage controlled reactance blocks (DVCRBs) are loaded to the 3-dB hybrid directional coupler at through and coupled ports, and 04 states of phase shifts are obtained between the input and isolated ports. Each DVCRB consists of 03 open-circuited transmission lines and switching p-i-n diodes and provides half of the required susceptance to achieve the desired phase shifts. Design theory is presented in detail, and for validation and demonstration, two typical SUTBRTPSs (0°/45°/90°/135° and 0°/22.5°/180°/202.5°) are designed, fabricated and measured. Being implemented in a single-unit structure, the proposed method yields highly compact dimensions of 0.44 λg × 0.46 λg and 0.54 λg × 0.46 λg, respectively. The simulation and measurements results are in good agreement and indicate maximum insertion losses of 1.7 and 2.1 dB with a return loss better than 20 dB and phase error of less than 1.5°.

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“…Recently, broad-band APAAs have been required in wide-band microwave applications. According to the demand of wide-band APAAs, broad-band phase shifters have been developed [2]- [5]. In this paper, we propose an ultra-broad-band reflection-type phase shifter with new reflective terminating circuits.…”

Section: Introductionmentioning

confidence: 99%

An ultra-broad-band reflection-type phase-shifter MMIC with series and parallel LC circuits

Miyaguchi

Hieda

Nakahara

et al. 2001

IEEE Trans. Microwave Theory Techn.

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An ultra-broad-band reflection-type phase shifter is proposed. Theoretically, the proposed phase shifter has frequency-independent characteristics in the case of 180 phase shift. The phase shifter is composed of a 3-dB hybrid coupler and a pair of novel reflective terminating circuits. The reflective terminating circuit switches two states of series and parallel LC circuits. Using an ideal circuit model without parasitic circuit elements, we have derived the determining condition of frequency independence of circuit elements. Extending the concept, we can also obtain a broad-band phase shifter for other phase difference as well. In this case, for a given phase difference and an operating frequency, we also derive a condition to obtain minimum variation of phase difference around the operating frequency. This enables the broad-band characteristics for arbitrary phase difference. The fabricated 180 reflective terminating circuit monolithic microwave integrated circuit (MMIC) has achieved a phase difference of 183 3 over 0.5-30 GHz. The 180 phase-shifter MMIC has demonstrated a phase shift of 187 7 over 0.5-20 GHz. The 90 reflective terminating circuit MMIC has performed a phase difference of 93 7 over 4-12 GHz.

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4:1 bandwidth digital five bit MMIC phase shifters

Cited by 23 publications

References 3 publications

A 40-74 GHz amplitude/phase control MMIC using 90-nm CMOS technology

A 40-74 GHz amplitude/phase control MMIC using 90-nm CMOS technology

Compact Single-Unit Two-Bit Reflection-Type Phase Shifters with Large Phase Shift Range

An ultra-broad-band reflection-type phase-shifter MMIC with series and parallel LC circuits

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