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http://hdl.handle.net/10553/41638
Title: | 360° phase detector cell for measurement systems based on switched dual multipliers |
Authors: | Pérez, Baltasar Araña, Víctor A. Pérez Mato, Javier Cabrera, Francisco |
UNESCO Clasification: | 3325 Tecnología de las telecomunicaciones |
Keywords: | 360° phase shift detector Microwave analog multiplier phase detector Phase detectorarray |
Issue Date: | 2017 |
Journal: | IEEE Microwave and Wireless Components Letters |
Abstract: | This letter presents a 360° phase detector cell for performing phase-shift measurements on multiple output systems. An analog phase detector, capable of detecting a maximum range of ±90°, has been used to perform a double multiplication of two signals, both in-phase and phase-shifted. The proposed solution broadens the frequency range beyond other solutions that require to fulfill the quadrature condition. Subsequently, the possibility of reaching the theoretical limit of phase shift within a hybrid coupler (Φ < 90° ± 90°) is discussed by using four straight-line equations to characterize the phase detector response. The proposed solution allows to extend up to 360° the phase detection range and provide an increased immunity with respect to both impedance mismatching and phase deviations within the hybrid coupler. To demonstrate the feasibility of the proposed design, a phase detector cell prototype has been implemented using a commercial hybrid coupler with a phase shift of 92.5° ± 0.5° at 3.1-5.9 GHz, an external switch and a microcontroller with 2 kB of memory. Measurements show a range of detection of 360° (±180°) across the tested frequency band of 2.7-6 GHz. |
URI: | http://hdl.handle.net/10553/41638 |
ISSN: | 1531-1309 |
DOI: | 10.1109/LMWC.2017.2690841 |
Source: | IEEE Microwave and Wireless Components Letters [ISSN 1531-1309], v. 27 (5), p. 503-505 |
URL: | https://api.elsevier.com/content/abstract/scopus_id/85018641822 |
Appears in Collections: | Articles |
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