کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6945411 | 1450475 | 2016 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A fully analog side-band cancellation technique in radio-frequency transmitters
ترجمه فارسی عنوان
تکنیک لغو باند کاملا متناوب در فرستنده های فرکانس رادیویی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
سخت افزارها و معماری
چکیده انگلیسی
In this paper, a new fully analog technique is proposed by means of which the adverse effects of frequency dependent gain/phase errors in quadrature transmitters are suppressed. Two separate phase and gain mismatch cancellation loops are implemented which search for the minimum side-band component. A new sign detection method is also introduced which makes sure the direction of the loop is correct. Analytical models and mathematical derivations have been presented which corroborates the circuit implementation. A proof of concept prototype using off-the-shelf components have also been measured which suggests 38-dB side-band rejection (SBR). Furthermore, the measured TX EVM and BER are improved by an order of magnitude for a QPSK-modulated input signal.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microelectronics Journal - Volume 53, July 2016, Pages 116-126
Journal: Microelectronics Journal - Volume 53, July 2016, Pages 116-126
نویسندگان
Ali Nikoofard, Siavash Kananian, Ehsan Hadizadeh, Ali Fotowat-Ahmady,